When I am scanning my music collection it hangs after some scans/lookups. I can get the program to continue again by killing one of the fpcalc.exe processes. After some scans its hangs again and I repeated killing that process again. I tried if running with the latest fpcalc.exe solves this, but it doesn't.
Attached is a screenshot and the log file (musicbrains Picard was started with the -d options).