Trigger collider not working for Convex Hall Collider Approximation

I have a problem, My robot has a large triggered object infront of it to detect colliders and change forward direction (simple autonomos drive). the triggered object is of type Convex Hall and also has a TriggerState component.
a collision is detected with Triangle Mesh colliders but not with other Convex Hall Colliders.
collision_bug2-ezgif.com-crop

Hi,
Not sure what could be wrong, but it seems the collision on the rock is somehow not created, is there some error or warning in the log?
Doing a quick check indicates, that this should work correctly:

Regards,
Ales

@AlesBorovicka
Thank you for checking the issue on your end. Could you please try to set the vertex limit of the none moving cylinder to 8 (to match the rock’s collider)? Is it still working properly on your end?

Thank you

Yes, even that seems to work fine. I think there is some error with the approximation, since I dont see the collision visualization on your video. Would it be possible to share the stage with me please?
Thanks,
Ales