problem with advanced character collision

i have a problem with advanced character collision
http://platen-software.de/sebastian/advanced_character_collision.png

in this image you can see a simple character (control it with arrows)

controlling works with a servo control motion actuator

with b you can duck/crouch.
the plate on the top moves down too (it is parented on a bone)

i want that the plate on the top collides with its environment (like with the control-cube)

in the blend file i have a torus falling on the plate, here all works.

here is the download link:
http://platen-software.de/sebastian/character_test_a_2.blend

Attachments


Hello
try to make it “dynamic” and enable “compound”?
Bye

i tried that but it didn’t work.