Hi,
Would you be able to provide a small example project?
The main reason for this is that it would take experimenting and tweaking settings to mimic PhysX like behavior as a workaround, which you’re already doing.
Having the same project would allow me to see the entire picture, try settings, and if necessary escalate to Epic as a bug or limitation.
Some settings to tweak:
-in the physics constraints > angular limits > soft constraints try lowering stiffness and damping
-adjusting mass
-lowering inertia tensor scale more
-project settings > Physics try increasing solver iterations; enable substepping and increasing it (possibly increases accuracy of simulation)
According to another user at: https://forums.unrealengine.com/t/ue-4-27-2-default-physics-engine/2517097/3 it does look like it may be a limitation / bug.
So if we’re unable to come up with anything, a repro project will allow me to make a report to Epic.
Regards