After all the database and version problems I had in December, everything seems to be working fine. However, tonight I scrolled to the end of the QSO list and there are no QSOs shown prior to 2020-12-15. This was alarming!
I made sure there were no filters. I tried re-sorting the list. Same problem.
Then, in desperation I checked my ADIF backup files and all QSOs are there. Whew!
Then, in CQRlog I set up a filter for QSOs from 2016-01-01 to 2019-12-31 and the missing QSOs appeared in the list. I cleared the filter and they disappeared again.
The combination that I found that has been working is CQRlog 2.4.0 with a fresh install of Linux Mint and MySQL.
Any suggestions? I'd really rather avoid repeating all the experimentation with operating system installs, different databases, and app versions, if possible. Lol.
Thanks in advance!