Ok, well, the part about the prop not moving is due to FS. U cannot fix that as of yet anyway. And u probably also noticed that the other aircraft had no landing gear. (Same thing). As for the aircraft showing as a C172 is because he was flying a 3rd party aircraft (Not default). An example:
If he was flying a POSKY 747 and u didnt have that model. He would show as probably a C172 or 737. But if u had downloaded and installed the SAME POSKY model as he was flying. It would show as that 747. I hope u understand what Im saying, lol.
Hope this helps.
DHC8 First Officer
Aircaft Maintenance Engineer