Hey there, Roman :)

I found an issue with the scanner.
When a set exists as both a zip archive and a set folder, the scanner checks only the zipped roms and doesn't pick the uncompressed ones located in the set folder.It reports the uncompressed roms as missing if they don't exist in the zip-file.
The rebuilder properly detects all roms and skips them (if the "skip existing roms" option is checked).