When idling in the Cessna 208, the prop rotates slowly along with the animation for what would be the normal animation when idling. Device is an IPhone 11 IOS 13.5
What you are seeing is like when you film some props. You are seeing it rotate but your brain/ios makes it move differently depending on the rpm and frames per second.
In addition the 208 is an older model so it may be adjusted if a rework is done.
It is totally normal… This happens when we film any prop because the camera adjusts itself with the rpm of propeller and the fpm of the camera…
Hope this solved your problem :)
This is just the graphics on the older planes. Hopefully this will be fixed in a future update
Also welcome to the community!!!