Collision Question

Hello everyone,
I am trying to replicate the AA game (the one with a rotating object in the middle in which you had to pin some sticks), but also adding some new features to it.
Currently, I am experiencing a weird problem with collision.
As you can see, some of the pins stop at the exact moment when they hit the Rotating object collider. However, others tend to go deeper into the object before stopping. Also, I can mention that the pins have a polygon collider which is marked as a trigger.
Can you guys help me figure out what might cause this problem?
Thanks a lot!