FGear doesn’t use the Unreal Vehicle base.
It isn’t using the PhysX base either.
It’s it own physics calculations.
The problem with Chaos atm, is that it makes heavy use of the physics sleep states. If an object isn’t being focused or interacted with, it’ll sleep the physics object (this is for performance reasons).
I’m still running on 4.27 but will look into migrating to 5.0 soon. Will put my findings here if I solve the issue!