Fudgehog: I'm playing Genshin Impact and yesterday Galaxy stopped tracking the time I spend playing it. I noticed it after the game had connection issues (it's always online f2p) and the game's client didn't open. Since than I played like 5 hours launching Genshin Impact from Galaxy as always but the time tracking is broken for this game. I tried restarting Galaxy, Windows 10 and re-adding the game to Galaxy without resolving anything.
Is it just that game or have you tested other games being tracked?
If all games, hit the Gear icon, go to settings, game features, and make sure "game time tracking" is checked.
If just the one game, you might want to try adding the different executable if this game is using a launcher to then launch the game. To do this, go to the games page, hit the -o-- icon next to play, hover over "manage installation". click "Configure". A window will pop up and click the "Custom executables / arguments" check box. From there press "add another executable / argument" on the button in purple. Then just navigate to the file and add it.
Hopefully one of those can sort the problem. Otherwise, you might need to contact GOG staff directly for support.
https://support.gog.com/hc/en-us/requests/new?form=technical