"File is read-only" error after several hours of working

This has been happening to me for several versions now. I edit in Office formats exclusively (docx, xlsx) and after several hours of working, the file will no longer save and I get a “this file is read-only” error.

I cannot reliably say how much time it takes for the bug to appear, other than I’ll be working on a document/spreadsheet long enough to be in a good flow and then the error ruins everything.

This never happens with LibreOffice.

OS version: Fedora 42 KDE
App version: 9.1.0
Downloaded from: Flatpak

This thread shows the exact error I’m getting.

Hello @DarthZiplock

I can see that you have also posted replies in these topics:

Please note that they are dedicated to Windows. I suggest troubleshooting the issue in this topic separately.


Does the issue occur with specific files? Does the issue happen upon attempting to save the file with CTRL + S or via save icon on a toolbar only?

If possible, please run a simple test:

  1. Open a file that produces the issue;
  2. Go to File tab > Save as;
  3. Select new location for the file and keep the original format, i.e. if it’s DOCX, then leave it as DOCX.

Does it allow you saving the file in that scenario?