Yeah, it was the WebGl version. And yes, the shotgun DOES have the habit of randomly not showing up when I switch to it.
And my guy DOES move forward during the robot cutscene.
Viewing post in Return To Wolfenwald - Snow Island v1.0. comments
Gonna look into that soon, gun reappears when fired and after-cut movement stops when opposite direction is clicked but key disappearing is a showstopper. Luckily these happen only in WebGL version, unless player is a Mac user there is always a Win desktop build. Also I'm gonna try and compile an Android version, probably there will be a whole new set of different bugs in that one :)