UE5.4.2 chaos vehicle strange wheel and suspension behavior

Development Programming & Scripting
,
1

Hi, since UE5.4 chaos vehicles seem to behave strangly.
The wheels keep spinning even if deactivating the whole mechanical simulation.
The suspension is building up extreme forces even if disabling the suspension simulation.
The wheels do sometimes build up extreme friction forces.
The skeletal mesh seems to be influcend by the physics even if the simulation is off, which means the skeletal mesh gets some rotations which somehow only influences the attached scene components. The vehicle chassi is still correctly aligned but all attached components are tilted.

Does someone experience similar problems?
We tried in 5.3 as well and there are no such problems.

Best regards

2

any luck with that? i am trying to stop the wheels when my plane is airborne with no luck yet

3

Hi, hm, this is old and I do not remember correctly.
I do believe, after weeks of trail and error, it had something to do with

GetMesh()->SetAngularDamping()

Which was called in tick for some is in air or ground checks.
In the end I did remove this code and it worked, but I might be missing something else.