Thanks for taking a look!
It's not a big problem for me, I just wanted to let you know about it.
Good idea to check the logs.
Opening up the ROM collection rebuilder in ROMAlyzer just shows a fresh, empty log.
Enable log is checked with 10000 lines. Is it saved to a file somewhere so I can find what happened with those three ROMs? Or does that refer to the log area of the window which gets cleared on close and open?