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When launch CS:GO or L4D2 directly from GOG Galaxy 2.0, the game runs correctly, but when load a map the game crash.
But if I launch the game from steam launcher, i can play correctly.

Anyone with this problem?
Did you ever find out how to fix this? I am having the same issue.
Open event viewer

also try to disable overlay
Post edited July 08, 2021 by FulVal