Maybe you just changed the sorting order. Click on the column header "Date" so that the "v" sign is visible there. Then newest entries are on top.

Thanks, I found the problem.
In the logbook context menu, I had evidently checked ISO8601 Date Format, just for fun. 

That created new call entries starting with the year number, which conflicts with the sort order of older data starting with the day of the month.

So the new entries starting with 2023 were sorted between 19-Jul and 21-Feb., not at the top or bottom of the date-sorted list. They were there, I just didn't see them where I expected them. 

I see now that changing the format changes the date sort algorithm but doesn't convert or purge the old data. I can understand, that's not what you want to spend your time reworking.

(By the way, there is no caret ^ or downward arrow showing the direction of the sort order in the column headers on my logbook UI. Not a big deal, I assumed that functionality anyway.)

(I didn't understand the relevance of your other response, about the DTMF setting. Maybe that was meant for another thread?) 

Thanks very much Heiko!