Hi @abeloman12
To troubleshoot the issue, try opening the document in a Chrome Incognito browsing session. This can improve performance by clearing cookies and disabling extensions.
If you haven't lost your work and the document is stuck on "saving," avoid closing the document, refreshing the browser, or restarting your computer until the changes are saved. To continue working, consider copying the content to a new Lucidchart document by following the steps outlined in this article Unable to save document | Community
Hope this helps - Happy to help further!!
Thank you very much and have a great one!
Warm regards