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cw8: It's a known issue. Only happens with Episode 2. Not sure if GOG has the latest updates yet or POS have rolled down the updates yet. Happened to me too. Episodes 3 and 4 are smooth without this action-delay bug and the bugs of episode 1. They said they'll retro-fix the bugs in episode 1 and 2.
Please check your account as we have just posted the latest updates :)