I had the same issue in Numbers. I use the Numbers app daily, 365 days a year; - at some point i saw the sheet (which has a date/time column with the current t

I had the same issue in Numbers. I use the Numbers app daily, 365 days a year; - at some point i saw the sheet (which has a date/time column with the current time, for each row i added) reverting back to a previous version (multiple added rows being deleted / disappearing.) I ended up just removing the file from iCloud and using it locally only. - You also see the same issue in the Shortcuts app, it then at least shows you the 2 conflicting versions with timestamps and asks which one you would like to keep.