Attach to component crashes

In my project on 4.6, i made a keycard i can grab with Razer Hydra. This keycard must go into the card reader to open the door.
So in the Keycard BP, i made an event to deactivate physics and collisions on pickup, working fine.
But when i pass it through the card reader, nothing happens because it just can’t read it as the collisions are turned off on this actor. So i simply tried to let it on, but as soon as i click to pick it up, everything crashes.
I tried to reproduce it in 4.5 and it’s working fine.

Here is the log

I really hope that the 4.6 next patch will fixed a lot of issues, because i had more in 4.6 in one week than since i have 4.3 :frowning: