Actually I had a similar issue when I first started. I had created a B3D animation of a door and when you were close enough and you right clicked on it you could open it... But you could not walk through it.
Even though the door animated open it was still CLOSED according to blitz collisions... SO
When I found a door OPEN I changed the collision mode for that door (since really you can only walk trough one at a time)and that seemed to work... until I left a door open and ALL doors were counted OPEN even though closed.
SO I simply rotated the door mesh out of the way AFTER the animation was finished and reset it before applying door close animation... Sloppy but OK
Even though the door animated open it was still CLOSED according to blitz collisions... SO
When I found a door OPEN I changed the collision mode for that door (since really you can only walk trough one at a time)and that seemed to work... until I left a door open and ALL doors were counted OPEN even though closed.
SO I simply rotated the door mesh out of the way AFTER the animation was finished and reset it before applying door close animation... Sloppy but OK