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Question

Some documents have trouble loading, some don't

  • January 12, 2026
  • 11 replies
  • 65 views

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Hi Lucid Support Team,

I’m experiencing an issue opening one of my Lucid Chart documents and would appreciate assistance.

Issue details:
I worked on a document titled “Procesy warsztatowe” last week, but now it won’t open. After the loading screen, I receive the message:

“There was an error loading your document.”

Another document named “Flowchart” loads without any problem.

At the same time:

  • The “New” button is disabled.

  • I get a notification stating I don’t have an internet connection.

  • However, the main dashboard cards load correctly, and I can create a new document by clicking the “Flowchart” card.

What I’ve tried so far:

  • Refreshed the page.

  • Logged out and back in.

  • Cleared browser cache (Chrome, latest version).

  • Tried on another computer and a different network connection.

  • Incognito page

I’m currently on a trial account, and it’s important for me to test Lucidchart to evaluate whether it can be adopted by my team.

Could you please help me resolve this issue as soon as possible?

Comments

alison cheney
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  • Lucid community team
  • January 12, 2026

Hi ​@designer.person,

 

Thanks for posting in the Lucid Community! These steps below will help me take a closer look at the issue you’re experiencing.

  • Could you please share a Technical Support PIN for your account? 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). Here is a link to our help center article on how to open the JavaScript console.

Thanks in advance for your help and patience!


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PIN: iuGkljJwADTw3eBAk3zLhRlkDoMf7yZ7Gi217009947


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178dd95……37a7da303.js.gz:526Error: Error while rendering at UccCg.render (75a8743……ee24.js.gz:1911:371) at Uc9Xg (75a8743……ee24.js.gz:3536:493) at UcTE.<anonymous> (75a8743……ee24.js.gz:3575:119) at UcTE.<anonymous> (f47b05f……8506b4e.js.gz:5:210) at Uc6k.dispatchEvent (c801df3……521246.js.gz:556:58) at Uc74f (75a8743……2ee24.js.gz:259:145) at75a8743……ee24.js.gz:3097:199 at Generator.next (<anonymous>) at b (c8b7b6f……3dd05cb.js.gz:1:100) at l.invoke (cb081e5……3db1e.js.gz:13:6412)

 

178dd95……37a7da303.js.gz:526

  1. Object

6

178dd95……37a7da303.js.gz:526UcG4c: Error loading document: Exception calculating Ucomf value: Cannot read value of a disposed Pipe calculateStack: Ucomf Ucy (from UcFE) of Number named: Ucy (from UcFE) of Number named: Ucynf UcWmf UcLnf UcMnf Ucy (from Uc4Hg) of UcBda named: Ucy (from Uc4Hg) of UcBda named: Ucy (from Uc4Hg) of UcBda named: UcJB at Ucz.getValue (fe0fa51……ae6c3.js.gz:166:127) at get value (fe0fa51……ae6c3.js.gz:182:381) at2bafee7……8dd48e.js.gz:509:83 at Uc2kf (2bafee7……dd48e.js.gz:499:124) at Ucomf.Ub (2bafee7……a8dd48e.js.gz:509:1) at FKd (fe0fa51……ae6c3.js.gz:164:341) at00016e0a:0x47dd at00016e0a:0x5603 at00016e0a:0x55c6 at UcF9c (fe0fa51……ae6c3.js.gz:170:327)

2

178dd95……37a7da303.js.gz:526UcG4c: Cannot read value of a disposed Pipe at Ucz.getValue (fe0fa51……ae6c3.js.gz:166:127) at get value (fe0fa51……ae6c3.js.gz:182:381) at Uc5df (2bafee7……dd48e.js.gz:218:271) at2bafee7……8dd48e.js.gz:509:50 at Uc2kf (2bafee7……dd48e.js.gz:499:124) at Ucomf.Ub (2bafee7……a8dd48e.js.gz:509:1) at FKd (fe0fa51……ae6c3.js.gz:164:341) at00016e0a:0x47dd at00016e0a:0x5603 at00016e0a:0x55c6

users.lucid.app/userAvatars/217009947:1 Failed to load resource: the server responded with a status of 404 ()

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://lucid.app/users/teamToJoin/chart 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://documents.lucid.app/documents/be9cbe39-34fc-41f2-882c-fd0d70852330/attributes/embedded 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://users.lucid.app/accounts/213149487/spark/subscription 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://documents.lucid.app/accounts/213149487/retentionPolicy 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://gravatar.com/avatar/afd0dca…?fN=32&d=404 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://documents.lucid.app/documents/be9cbe39-34fc-41f2-882c-fd0d70852330/attributes/embedded 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://activity.lucid.app/users/217009947/activities/comment/be9cbe39-34fc-41f2-882c-fd0d70852330/recent 404 (Not Found)

Access to fetch at 'https://users.lucid.app/msteams/217009947/externalUsers' from origin 'https://lucid.app' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status.

942b8f3……f1f9ce85a.js.br:672 Service Worker failed to fetchhttps://users.lucid.app/msteams/217009947/externalUsers

The FetchEvent for "https://users.lucid.app/msteams/217009947/externalUsers" resulted in a network error response: the promise was rejected.

942b8f3……f1f9ce85a.js.br:672 Uncaught (in promise) TypeError: Failed to fetch

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://users.lucid.app/msteams/217009947/externalUsers net::ERR_FAILED

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://activity.lucid.app/users/217009947/activities/documentShared/be9cbe39-34fc-41f2-882c-fd0d70852330/recent 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://activity.lucid.app/users/217009947/activities/comment/be9cbe39-34fc-41f2-882c-fd0d70852330/recent 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://users.lucid.app/accounts/213149487/lucidscale/subscription 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://users.lucid.app/accounts/213149487/spark/subscription 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://documents.lucid.app/documents/be9cbe39-34fc-41f2-882c-fd0d70852330/attributes/embedded 404 (Not Found)

cb081e5……0e4ea3db1e.js.gz:93 GEThttps://documents.lucid.app/documents/be9cbe39-34fc-41f2-882c-fd0d70852330/attributes/embedded 404 (Not Found)

 

Understand this err

 


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  • January 13, 2026

Also having the same issue, interested in the resolution

 

iul7BdnhA3nzq17V5DY3hp1PJD1X313gYc174753245

 


alison cheney
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  • Lucid community team
  • January 13, 2026

Hi ​@designer.person & ​@MConnors!

Thank you for responding in the Lucid Community! I’m sorry you’re having trouble with this, but I’m happy to help. I wanted to ask a few clarifying questions so I can take a closer look at the issue you’re experiencing.

 

@designer.person,

Thank you for sending your technical support pin. I was able to reproduce the issue you are experiencing, and received the same error. I have a couple follow-up questions for you to clarify and get to the bottom of this:

  • It looks like this error you are experiencing is for one document, (not multiple) is that correct?
  • Have you tried duplicating your document by making a copy of it (see screenshots below)?
  • Once you have made a copy of your document, does the issue persist?

 

Click the three horizontal dot menu

 

 

Select “Make a copy”

 

 

@MConnors

Thank you for sending your technical support pin. I want to clarify a few things with you to take a closer look:

  • Are you experiencing this issue with one document or multiple documents?
  • Could you try opening your document in a private or incognito window to help us narrow down the potential cause?
  • 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.
  • Could you please send a screenshot of the exact issue/error you are seeing.
  • Have you tried duplicating your document by making a copy of it (see screenshots above).
  • Once you have made a copy of your document, does the issue persist?

 

The errors you are receiving are definitely strange, and we will do everything we can to get to the bottom of this! Thank you for your help and patience!


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@alison cheney Unfortunately, the issue persists even after making a copy. That’s correct the issue is with only one document but my account is new and it’s my first document as I am testing Lucid with a trial account. I have created another test document (visible on my first screenshot) and issue didn’t appear for this test document. 


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  • January 14, 2026

@alison cheney I have done everything you listed, it’s not just me it’s my whole team that accesses this single document and we’re on all different networks. 

I have made copies, went incognito, went on VPN, off VPN, work network, home network. It’s always the same result. 


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  • January 14, 2026

@alison cheney also something to note. 

The document I’m having troubles with was one we had transfered over when JAM Boards went away. 


alison cheney
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  • Lucid community team
  • January 14, 2026

Hi ​@MConnors & ​@designer.person,

Thanks for getting back to me with that additional information. I believe you have identified a bug, and I have reported this to our development team. I apologize for any disruption this may cause, and I will update this thread with any new information about a fix. Please follow along on this thread for updates, and post any additional questions or concerns below.


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That’s a pity. We’ll likely not continue with Lucid after the trial, as we need a reliable tool that ensures we can access our clients’ documents at any time without risking data loss.