Blendspace animation not working with physical assets

Hey everyone,
At the moment I am working on a forklift which uses different skeletal poses which are used for blendspace animation.
Everything is working till the point where it actually has to lift objects off the ground. I cannot get collision to work on the fork. I tried adding a collider to the physical asset of the animated bone but this stops the bone from moving. (The liftanimations stop working). Does anyone have any idea what I could be doing wrong or does anyone know another (or better) approach to this? I added a screenshot of what I am looking at the moment.

Thank you in advance!