I run NC (now 30.0.2) with very old OnlyOffice (6.4.2), and now we decided to switch to Collabora (CODE).
But almost immediately we found that in one XLSX file one of the sheets disappeared, and it is also absent in downloaded from NC local copy.
We reverted to the old editor - absent sheet magically reappeared, and tried to find the source of problem. And found, that if that XLSX downloaded from NC filemanager - downloaded copy has no this sheet, but if file downloaded from opened onlyoffice - sheet is in place.
So I’ve come to concluson that onlyoffice not always saves document changes, and as appears to me - it saves them in its SQL “onlyoffice” database.
So, the question - is there any way to tell onlyoffice to sync all unsaved changes, or, at least, find the period during which the changes was not written?