[mythtv-users] recordings disappeared from media_library/watch_recordings?

[lists at arewethere.net]

Hi all

I'm running fixes/31 on ubuntu 20.04, combined fe/be.
Things have been going great until today when I upgraded to
2:31.0+fixes.202011252120.207ccf1aeb~ubuntu20.04.1

A lot of recordings that had been around a while suddenly disappeared
from the frontend list (media library -> watch recordings).
I went to the autoexpire list and disabled autoexpire for a bunch of
them but a good number of those I disabled autoexpir for did not
reappear in the list of available recordings.
Strangely, mythweb shows that the recordings are there: I can download
a .ts file for one of the shows that does not appear in the watch
list.

I exited the frontend and started it again, which made no difference.
I ran mysqlcheck -c -A and everything was reported as ok.
find_orphans.py doesn't show the recordings I'm after, only a
handful of zero-byte files.
Checked the changelog for the package...wasn't much help.

Has anyone else seen this kind of thing, or can anyone suggest how
to get those programs listed again?

Regards