Unable to export: "An error occurred. Failed to download."

Hi ​@send2dj ,

Thanks for contacting Lucid Support!

Just to make sure that we are on the same page, please review our Export Your Lucid Documents article from the Lucid Help Center. Additionally, please see our Troubleshooting: Export article from the Lucid Help Center for steps to resolve any issues you may be having. Let me know if you have any questions about how downloading/exporting your document should work.

There are a few specific things worth noting when working with exporting your document:

• Try the export in a Chrome Incognito browsing session. This often improves performance by clearing your cache and cookies and disabling your extensions.
• Sometimes issues like this can be related to internet connection speed or network security. Please try the export again on another network, ensuring that you are on a strong, stable connection.
• If you are using Lucidchart, is the page that you are trying to export a master page? If so, it will be omitted from the downloaded version of your document and you will need to convert it into a page before exporting. To do this, left-click on your master page tab and select "Convert to Page."
• If your export is timing out or your content is the wrong size in the downloaded version, adjusting the content scale can help. To adjust the content scale, infinite canvas must be toggled off.

If the issue persists, please send the following information:

• A description of the download settings (file type, document pages, cropping, quality, etc.) that you selected for the download.
• A screenshot of the associated Javascript Console output. You can open your Javascript Console by pressing Ctrl + Shift + J (if your computer is a Windows / Linux) OR Cmd + Opt + J (if your computer is a Mac).

Thank you for your help and patience.

THANKS FOR THE SUGGESTIONS, BUT I AM STILL BLOCKED.  SEE MY RESPONSES IN-LINE BELOW

• Try the export in a Chrome Incognito browsing session. This often improves performance by clearing your cache and cookies and disabling your extensions.

NOT APPLICABLE TO MY ENT SETTINGS

• Sometimes issues like this can be related to internet connection speed or network security. Please try the export again on another network, ensuring that you are on a strong, stable connection.

I AM ON A CORPORATE WAN, SO SPEED/SECURITY IS NOT AN ISSUE

• If you are using Lucidchart, is the page that you are trying to export a master page? If so, it will be omitted from the downloaded version of your document and you will need to convert it into a page before exporting. To do this, left-click on your master page tab and select "Convert to Page."

N/A

• If your export is timing out or your content is the wrong size in the downloaded version, adjusting the content scale can help. To adjust the content scale, infinite canvas must be toggled off.

TRIED REMOVING INFINITE CANVAS - STILL GETTING THE SAME ERROR :-/

• A description of the download settings (file type, document pages, cropping, quality, etc.) that you selected for the download.

FILE TYPE: I TRIED THE FOLLOWING (NONE WORKED)

1. PNG WITH TRANSPARENT BACKGROUND

2. PNG

3. SVG

 document pages: SINGLE PAGE

cropping: CROP TO CONTENT

quality: SCREEN QUALITY

A screenshot of the associated Javascript Console output; SEE ATTACHED

Hi ​@send2dj ,

Thanks for sharing those details and the console output, that’s very helpful. To narrow this down further, can you let me know if the issue happens with just this one document, or if you’re seeing it across multiple documents (and accounts, if applicable)?

If it’s only affecting one document, please try duplicating it (File > Duplicate) and attempt the export again from the copy. This can sometimes clear up file-specific issues.

Additionally, can you please send a Technical Support PIN for your account? This will allow me to take a closer look at the issue you’re experiencing. Please navigate to your Account Settings to generate this PIN. For more information on generating a Support PIN, check out this Help Center article.

Once I have that information, I’ll be able to investigate more deeply.

the issue is still there.

I tried duplicating and exporting - still did not work.

it does work on other files (less complicated)

PIN: iu03Ld7jNdNjjalUEt8EPC8owUgWHJcnjr134119972

Hi ​@send2dj,

Just jumping in here after Ike! ​@ikalu, thank you for your engagement and support.

Thank you for sending over that technical support pin. To take a closer look at this issue, could you provide me with the specific name of the document that is failing to export? I tried reproducing this issue on one of your documents using the technical support pin you provided, and was able to export without any issues. Is this happening to every single one of your documents or just one specific document?

it’s happening on another large doc:

“ASCII / GCL Sprout - Vineyard CIF (go/ascii-sprout-drawing)”

try enabling these settings:

• Crop to content
• Print quality

​@send2dj, thank you for providing the name of your document! I was able to take a look at your document and I received the same error you are seeing when I tried to export it as a PNG or SVG file (with the crop to content and print quality settings you mentioned). However, I was able to export your document in the format of a PDF and JPEG files. I know you mentioned earlier trying to export it as a PDF, but have you tried exporting it as a JPEG file? This could be a great workaround. 

Could you let me know if your document is still having issues exporting after attempting to export as a JPEG or PDF? If you’re still running into issues, could you try opening your document in a private or incognito window to help us narrow down the potential cause, connecting to a different network, and disconnecting from your VPN (if applicable)?

Here is this help center article that might be helpful on the best steps to take when documents fail to export. Thanks!

Thanks.  Exporting to jpg worked for me. please fix the png export issue.  I need an image format - pdf is not a good fit for me.  export to pdf did work for me. 

Thank you ​@send2dj for your feedback! I’m glad to hear the JPG format worked for you. We’ve noted the trouble you had with the PNG export. Because PNGs are uncompressed, very large documents can sometimes exceed what the browser or the export tool can generate. For now, JPG is our recommended image format for files of this size to ensure they render correctly. 

We are very interested in your feedback and committed to continually improving our products. Please first search the Product Feedback section of this community (with the filter Topic Type = Idea) to see if it’s already been submitted. If so, please add any additional details you’d like and upvote the request - this consolidation helps to refine feedback and properly capture the popularity of the request.

If no one has submitted this idea yet, please create one of your own and be sure to include details about your use case or what you’d like to see in this experience. This will also allow other users with similar requests to discover and upvote it, then add details of their own.

Finally, for more information on how Lucid manages feedback via this community, take a look at this post: What happens to my feedback? | Community

I’m also posting again because, unfortunately, I seem to be out of luck with exporting from Lucidchart.

Previously, I reported issues with background gradients being lost in PDF exports. I also tested different troubleshooting steps (including WebGL toggling), and a bug was identified and reported. I appreciated the support in that case.

However, now I am facing an even more basic problem: as the user that initiated this topic,  I am simply trying to export a diagram as a PNG file, and I receive the message:

“An error occurred. Failed to download.”

I was actually considering recommending Lucid for an institutional subscription for my team. But at this point, I am hesitant. Reliable export is a fundamental feature. If exporting the material that users generate cannot be done consistently and reliably, it becomes very difficult to justify broader adoption.

I am seriously considering exporting all the work I’ve created in Lucidchart and migrating to another tool. I say this with some sadness, because I am accustomed to the Lucid environment, and such a migration would involve a significant amount of work and learning. Still, if exporting cannot be made dependable, I do not see much alternative.

I hope this can be addressed promptly.

Hi ​@Wladimir J. A,

Thank you for posting in this thread. I completely understand your frustration with not being able to export your diagram, and I appreciate the details around the error you received.

Before you commit to the heavy lift of migrating your work, could you try these few steps to narrow down exactly why this is happening and see if we can get your export working as soon as possible:

• Could you try opening your document in a private or incognito window to help us narrow down the potential cause? For help with opening an incognito window, please see this community post.
• Could you also try connecting to a different network or disconnecting from your VPN (if applicable)? Sometimes account performance issues can be related to internet security/speed or browser issues. These steps will help us eliminate that possibility.
• Sometimes there is a stray element somewhere on the infinite canvas that is making the file size too large to process. Could you please try the following steps to export your diagram: (see screenshot below)
  • Select only your diagram and Right click
  • Select “Export selection” and choose “PNG”

• Turning off your Infinite canvas helps reset the export boundaries. Could you please try going to File > Settings > Document settings and turning off your Infinite Canvas by toggling it off? (see screenshots with steps below)

If you are still experiencing issues with exporting your document, could you share a temporary Document Support PIN for this document? This will help me take a closer look at what’s going on. This PIN is safe to post in this thread because it is only accessible by members of the Lucid support staff. You can find steps for generating a Support PIN in this Lucid Help Center article: Generate a Lucid Support PIN.

Thank you for your help and patience!

Hi Alison,

Thank you for your reply and apologizes for taking some time to respond.

I am using a standard Windows PC with Chrome, no unusual configuration, no experimental setup. In other words, this is a very typical environment, and it should not be prone to export issues.

I’m afraid I won’t be able to run the additional network/VPN tests you suggested. My setup is quite standard and stable, and I do not believe the root cause lies there.

I would also like to take this opportunity to clarify that my frustration is not limited to this single PNG export issue (as described in this thread). I have been increasingly frustrated by recurring export problems more broadly.

For example:

• When exporting visualizations, the system does not consistently respect hidden layers. Even if certain layers are turned off, the exported file includes all of them. This defeats the purpose of using layers to control visibility and creates additional manual cleanup work.

• I was also not able to use Lucidchart effectively for presentations. When attempting to present directly within the platform, the interface still showed editing elements and component selection behavior. As a result, I had to resort to exporting (using a screenshot due to the export issue mentioned above) and then presenting through an external image visualization tool.

Export reliability and presentation clarity are fundamental capabilities. These are not advanced edge-case features; they are core workflow functions.

I genuinely like the Lucid environment and would prefer to continue using it. But at the moment, these issues are making it increasingly difficult to rely on it professionally.

Thank you for your continued engagement on this.

Best regards,
Wladimir

Hi ​@Wladimir J. A,

Thank you for your thorough response and for trying those troubleshooting steps!

Since your export is currently failing, would you mind trying these additional steps to narrow down the cause:

• Adjust content scale
• Copy content to another document
• Decrease document file size
• Export another file type

When it comes excluding layers from your export/download, please follow these guidelines:

• Be sure to “Save Layer View” of your document before you export.  Please review the latest post from Leianne in this post to “Save Layer View” (Sync Layer Visibility). The “Sync Visibility’”option was updated to “Save layer view” and will only appear when you change which layers to show/hide. 

There are a lot of different ways you can present in Lucid, and I wanted to mention a few resources that will help you present effectively:

• Here are 6 practical tips, put together by our Lucid team to Present like a pro. 

• Here is a list of our Facilitator Tools and Controls to help you present most effectively.

• If you are leading a meeting, you can assign yourself as a facilitator in a Lucidspark board to gain access to additional features that will help you run your meeting. To assign yourself as the facilitator, please refer to this section of our Help Center Article. 

If you are still experiencing issues after reviewing and attempting the above steps/resources, would you mind telling me the specific steps you have taken when attempting to export layers, and when attempting to present in Lucid? 

Also, you mentioned these issues aren’t happening with one specific document, it is happening with multiple documents. I am happy to take a look at the original document you posted about if you would like. If so, could you share a temporary Document Support PIN for this document? This will help me take a closer look at what’s going on. This PIN is safe to post in this thread because it is only accessible by members of the Lucid support staff. You can find steps for generating a Support PIN in this Lucid Help Center article: Generate a Lucid Support PIN.

Thank you for your help and patience!

Hi Alison,

Thank you very much for your detailed reply and for sharing all these resources. I appreciate the effort you are putting into helping troubleshoot this.

I will try to find time to go through the technical suggestions you listed (adjusting content scale, copying content to another document, etc.), although I must admit it is becoming difficult to justify spending too much time troubleshooting something as basic as exporting diagrams.

I did take a quick look at the presentation resources you shared, and they reinforced a concern I already had. The suggested approaches seem to assume that the presentation will happen inside the Lucid environment, with participants joining a Lucid session or board.

For my use case, that is not practical. When I present diagrams, it is usually in the context of live talks, webinars, or conference presentations, where I simply need a clean presentation mode — for example something equivalent to a viewer mode with simple tools like a laser pointer or navigation between sections.

Requiring everyone in the audience to enter the Lucid environment or participate in a Lucid session creates unnecessary friction and is not something I can reasonably ask from colleagues or conference audiences. Because of that, the presentation workflows suggested in the links are unfortunately not suitable for my needs.

More broadly, I think this reflects a larger issue. Lucid seems increasingly oriented toward keeping users inside the platform, whereas many professional workflows require diagrams to be reliably exported and presented outside the platform. When exporting becomes unreliable or complicated, it puts users like me in a difficult position.

As I mentioned earlier in the thread, I was seriously considering recommending Lucid for an institutional subscription for my team. However, if something as fundamental as exporting diagrams reliably — or presenting them cleanly outside the platform — remains problematic, it becomes difficult to justify that recommendation.

I say this with some regret, because I genuinely like the Lucid environment and have invested significant time building diagrams in it. But if these limitations remain, they risk alienating users who depend on Lucid as a professional diagramming tool rather than as a collaborative workspace.

Thank you again.

Hi Alison,

Thank you very much for the continued support and for outlining these additional steps. I appreciate the effort you’re putting into helping resolve this.

When I find some time, I’ll go through the troubleshooting suggestions you mentioned and see if any of them help narrow down the issue.

All the best,

HI ​@Wladimir J. A,

Thank you for your response here, and it is my pleasure! I completely understand, and take your time getting through those steps! Let me know what you find whenever you have a chance to dive in. I’m here to help with the next steps once you've had a look!

​@alison cheney ​@Wladimir J. A 

I’ve been running into this problem lately myself. Not every file every day, but I bet every week I have run into this issue at least once. I specifically need PNG files as that is what our documentation publishing supports (what I’m creating the diagrams for) – and, having tried the above suggested workarounds, my only option has been to export as JPG and then open in Preview and re-export as a PNG. It’s a frustrating second level of effort, and does not work if having a Transparent PNG is needed. The file causing me trouble this week is one that has exported just fine dozens of times over years worth of edits/exports (yes, today I tried copying the diagram onto a brand new file, and still had the issue) – which is why I suspect that something has changed in the Lucidchart engineering/backend in recent months...

Hi ​@Zoe H102,

Thank you for your response in this thread! I’m sorry to hear you are running into this same issue and it sounds like you have tried some of the troubleshooting steps with no luck. Would you mind providing me with the following information so I can take a closer look at the file you are having trouble exporting?

• Could you share a temporary Document Support PIN for this document? This will help me take a closer look at what’s going on. This PIN is safe to post in this thread because it is only accessible by members of the Lucid support staff. You can find steps for generating a Support PIN in this Lucid Help Center article: Generate a Lucid Support PIN.
• Could you send a screenshot of the associated Javascript Console output after reproducing the issue. You can open your Javascript Console by pressing Ctrl+Shift+J (if your computer is a Windows/Linux) OR Cmd+Opt+J (if your computer is a Mac).
• Are you exporting the full document, or a specific selection? Have you tried turning your “Infinite canvas” off?

Thank you for your help and patience!

​@alison cheney – Here is my PIN (dulzR74NHd6U37UycgvuwxWrc4EJ7M4oyN151648095), and the screenshot is below. This is the diagram in a fresh doc, as an attempt to make the file smaller to hopefully be able to export as PNG – but it didn’t work either. Like I mentioned above, I have been exporting this file just fine on a regular basis, but only recently am getting an error. And yes, I’m printing the entire tab, and infinite canvas is off. Thanks for anything you might be able to do to help resolve.

Hi ​@Zoe H102,

Thank you for your response and for sending the screenshot of your Javascript console output! That provided a lot of clarity here!

I used the support PIN you provided to test the export on my end, and I was able to successfully export the diagram as a PNG without any errors. Since it’s working normally on my end, the “Abnormal Closure” error you're seeing is most likely to do with a browser extension, a VPN, or a firewall that is interrupting the export.

To get this working for you, could you please try the following troubleshooting steps?

• Try opening your document in a private or incognito window to help us narrow down the potential cause? For help with opening an incognito window, please see this community post.
• Try connecting to a different network or disconnecting from your VPN (if applicable)? Account performance issues can often be related to internet security/speed or browser issues. These steps will help us eliminate that possibility.
• Try a different browser to see if the behavior persists.

Please let me know if the following steps are able to resolve the issue you’re experiencing. I am happy to send over the PNG export of your document if you would like. Thank you for your help and patience!