Hello @Moter Check this question where a similar problem was described:
https://devsupport.flightsimulator.com/t/3839 The bounding sphere is
generated based on the position of vertices at frame 0. If you use skinned
animations to move your character around, this will not move the bounding
sphere. The way we suggest to fix this is to have your character stay in place
in the skinned animation and move him around using a normal animation on a
root node. Regards, Sylvain