Ok, so the game has been running perfectly for the past month, I have around 120 hours clocked into the game.

Since the last GOG Update, whenever I press ''Play'' on the GOG client, Witcher 3 won't start, if I check the Task Manager (photo below), it says that the game is open and running, but there's no icon of it on the task bar. I can run the game with absolutely no problem from the install folder. But I want to play it via GOG for the Achievements and time tracking.

I reinstalled GOG and the game managed to work but the problem eventually came back after a few hours.

I repeat. the game runs great and flawlessly by it's own. I just want to run it trough GOG Galaxy but it doesn't start it.