I hate to jump into the fray with this, but this happened to me when on 30M FT8 just now. I double clicked on DP1POL in WSJT-X Band Activity window and JTAlert (2.16.16) directed DXKeeper to do a previous QSO lookup and a pop-up box came up:
"Changed QSO_Begin item with DP1POL at 2018-12-19 00:00:00 on 40M FT8 in FT8
after completing and saving changes, resubmit this QSO to both eQSL.cc and LOTW"
When I restored my log from a previous backup the QSO date/time actually was 2018-12-19 00:00:00, so nothing was changed. When I search for and find the log record the pop-up displayed again.
I understand I can disable the pop-up. This is just another data point for you.