sms gone but still in something like "cache"? HOw to read them out ie. backup?

[abcnorio]

Hello,

version 5.19.3

Yesterday all sms were gone from one second to another without warning (no update of android or anything else). However, searching for a term in the search bar shows those messages (where the search term can be found) but klicking on a message and nothing happens, ie. blank screen.

Trying to export leads to an empty file. Reopening the messenger and the search bar "thing" as outlined above is still possible. Thus, somewhere the messages must still be present.

Any idea where this is located and how I can extract that - with adb, or whatever? I am using *nix, so all that is no problem.

Any idea WHY this happened. Will switch now to the successor as outlined here but would be good to get those old messages.

Thanks!