I'm using ClrMamePro 3.63b.
I did a full scan on a Mame set (scan sets/roms/diskimages + all checks + unzip ROMS / decompress Chd and check SHA1)
1) Having some corrupt zips, the roms that are unreadable inside the zip are signalled in the scan result window but disappear if I change the Hide/Show settings. I must relaunch the scan tho show them again.
2) When I launch a subsequent FastScan it doesn't skip the Chd files that were OK in the scan process, while the correct roms/sets are skipped.