That's good news, unfortunately it seems the patch is not out on GOG yet, perhaps tomorrow I'll just continue playing on my buggy save with the consideration that sooner or later it'll get fixed.
Not sure if this is exactly the same issue, but I'm experiencing a sort of freezing as well. The game sound will cut out, then the characters will continue to be able to move around for a few seconds, then the game will freeze for 20-30 seconds. Hotfix didn't seem to resolve.