Calc spreadsheet edits fail to save


Collabora calc (Collabora Office android app version from the Google play store) was running fine on my Samsung android 12 tablet. I was opening files via wifi on a NAS, editing them and saving the changes. Anybody else on the network could open the edited files and see the changes. All was fine.

Then, about 3 weeks ago, Collabora calc stopped saving the changes. It had always been extremely frustrating that Collabora never had a File > ‘Save’, or a File > ‘Save As’, but the ‘Save’ icon simply stopped working.

I have uninstalled and installed but the failure to save is just the same.

Thank you for reading. Any help would be greatly appreciated.