I installed GOG Galaxy 2.0 the other day. It's quite neat, and immediately detected all the games I already had installed, but for some reason, the updates for them (currently AI War 2 and FTL) are just perpetually failing. They download files but at the last step they stop working, are labelled as Failed, restart, and it keeps going. I reported the issue but didn't get any news yet. Is this happening to anyone else?

Seems GOG is having issues across the board today, could be related.

This is still not solved :(

For me it is Racedriver Grid which causes an issue. It tried to update the game but was always stuck at 0%.
I also could not uninstall the game so i deleted it and downloaded it again. Only that fixed the issue for me.

I have been having the same exact issue for any download I've attempted the past 2 days. I really want to play wasteland 3 but now I am in the same boat with the update this time.

Reinstalling hasn't worked for me. However, I did move files out of program files(x86) and that helped get the game to the point of updating at least. (the current issue) maybe something similar will work for you. I don't even know why or how that worked though. Gl guys.