I have occasionally gotten access errors after using the filter function - got one today after a very simple sequence. Tried it again and no error!? Random?

Anyway, here's the sequence:
1) Fire up CqrlogAlpha (latest git version, built locally)
2) Click OK on the "rig not responding" message
3) On the QSO list, hit F12 for filtering
4) Enter callsign that has multiple, old QSOs. Hit Enter
5) Select an old entry on the QSO list
6) Click Edit or F4 to edit
7) Hit ESC to cancel Edit QSO window
8) On the QSO list, type Shift+F12 to cancel filter
9) Boom! Access violation window appears
10) Click Abort

I don't think this is a new bug - I've had them maybe every couple of months as long as I can remember, but this is the first time it happened on the first operation I did today. The only things that might be common to all is that there is at least one ESC to cancel an edit, and the QSOs in question are usually old.

Anything else I can do?