Hi ​@at8j, thanks for posting in the Lucid Community! Are you still experiencing issues when trying to download your file? 

To start with, here are a few suggestions that may help:

• 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.
• 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 the issue persists, please sent the following information in this thread so I can take a closer look for you:

• A description of the download settings (file type, document pages, cropping, quality, etc.) that you selected for the download.
• A screenshot of any error messages or pop-ups that appear when you attempt to export.
• If the document will export but does not look as you expected, please send me the downloaded file and a description of what about it is incorrect, or a screenshot of the issue in the exported document.
• 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).

Hi I have same error, following is Console screen capture. I have tried with different network, different computers with the same result when trying to download as a .png with and without crop at 300 quality, here is the console. Thanks : 

Hi ​@Philippe Rouve, thank you for providing that information. I’m happy to help! Would you mind providing me with a screenshot of the error message you’re receiving when you attempt to export your document? 

Are you experiencing this across multiple Lucid documents, or is it one specific document that is not allowing an export?  

Would you mind providing a detailed description of the download settings - including document pages, cropping, quality, etc. that you selected for the download?

Can you also try the following steps and let me know if the issue still persists? 

• Try the export in a Chrome Incognito browsing session. This often improves performance by clearing your cache and cookies and disabling your extensions.
• If your export is timing out. adjusting the content scale can help. To adjust the content scale, infinite canvas must be toggled off.