I have a bad habit of installing games and leaving them installed, even if I don't intend to play them again or replay them any time soon. In preparation for the release of Baldur's Gate 3 and its 120GB space requirement, I was clearing space off of my game SSD. I uninstalled a few games that I was done with, but I had a few games that I didn't want to uninstall. I either play them off and on, or I'm not finished with it, or want to replay it, so I moved those games over my my HDD to free up the space on the SSD.

I've done this before with single games, but this time I moved 14 games in one go. I used the scan folder within Galaxy to scan my HDD's GOG directory, but it only detected 10 of the games. I tried manually importing the other 4, but it would fail saying "There was a problem importing the game from [[path]]". I restarted Galaxy and tried it again, but it failed.

I noticed that after closing Galaxy that the GalaxyCommunication.exe will stay running for a few minutes before closing. So after closing Galaxy, I waited for GalaxyCommunication.exe to exit, then started Galaxy back up. I used the scan folder again and it found one game. I had to do this three more times to get the rest of the games imported. I tried importing single games, or scanning the folder, but for some reason after that initial batch of 10 it imported, it would only do one game and I would have to restart and wait for all Galaxy processes to close before it would import another.

This is something to report in a support ticket, accompanied by the zipped up C:\ProgramData\GOG.com\Galaxy\logs folder.

I would like to add that I had the same problem and when I waited for the Galaxy communication service to terminate on its own and restarted Galaxy I was able to get a game to import that previously was not recognized.

I'm having a similar problem again. I didn't notice, but for some reason my SSD disconnected. When I started Galaxy I noticed some games missing. I realized they were all games installed on the SSD, and then noticed the SSD was not showing up in Windows Explorer or the device manager. I restarted my PC, and the SSD was back. I checked it for errors and it's fine.

I started Galaxy and all of the games are now showing up again under the installed tab, but when I select a game, instead of play button, it has an install button. I used the scan folder thing, and it said it imported 9 games. There are 14 installed on the SSD, so 5 are installed but not installed. I restarted Galaxy, waited for the GalaxyCommunication.exe process to close, try again, but it won't import any more.

I found the 5 games that are "not installed," but I can't try manually importing them individually because Galaxy somehow sees they're installed.

This time was more of a pain to get them imported back into Galaxy. I had to move the game directories so Galaxy would not see them. I was then able to move one at a time over and import single a game at a time. There was one game that it refuses to import. It kept giving me the error "There was a problem importing the game from [[path]]".

I was about to give up and re-install. I was going to move the game so it wouldn't show as installed in Galaxy and give me the install button, then move it back before clicking install hoping it would see the files already there and not re-download it and just verify it. I shut down Galaxy and was waiting for GalaxyCommunication.exe to close when I got distracted. I then started Galaxy, forgetting to move the game. I was about to close Galaxy when a notification that the game was updated and it now shows up properly.