When you are in a mothership your head doesn't rotate in 3rd person but it does for other players and in 1st person

Could you test it on a vanilla GC space station as well? It really shouldn't behave any different...

Sorry for the long delay.

I can't reproduce this. Do you have any other mods which might affect player rendering?

Modpack:https://www.dropbox.com/s/zgu237awbshorqo/Superheroes.zip?dl=0