Hi Ray thanks for your post and sorry for the trouble!
You may already have come across these steps but if not would you mind trying the following just to rule out some common issues?
- Try the export in a Chrome Incognito browsing session. This often improves performance by clearing your cache and cookies and disabling your extensions.
- Try the export in an alternative browser.
- Please also try printing from a different internet connection to make sure that there is no network interference.
- Sometimes diagrams that are imported from other sources (such as Visio Draw.io or others) have trouble printing. Was this diagram imported? If so copying and pasting the contents of the document into a new Lucidchart document can sometimes resolve printing issues.
If that doesn't help would you mind reaching out to us directly so we can take a closer look at the issue? Please use this form to submit the details and make sure to include an example URL of an affected document and the print settings you selected in the dialogue window.