Hello,
I have this problem on QSO List:
If I set a filter and then close the QSO List window, when I reopen in the bottom appears "Filter is USED!" message but the filter is inactive.
 
Example: If you set a filter to show only today QSO, when you reopen the QSO List you'll have the entire logbook with filter active...
 
 
73's
Stefano
SWL I3-2782/VE