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For an unknown reason it seems that my character gets stuck on the Orca landing craft's geometry and is thus unable to move out from the starting point. I've tried various things like fiddling with settings, compatibility mode and such but nothing works.

If I'm honest it is a worse thing to experience than the crashes at the start of the 2nd level that I've heard other people experiencing.
Limit the fps to 60, in the launcher when you go to set the resolution put 60hz