attaching doors to a mover

[legacy-S-Dot]

I've made a moving train. It's a mover. It has sliding doors. They are attached to it (by the movement-tag) and should open as soon as the train stops.

Now I run into a funny problem. They don't move if they are designed as sliding doors. If I set them as normal doors (that turn around), everything is fine

So there might be a problem with the movement because they should open in the same direction as the mover already has moved them.

Is there a special setting I missed? - Thx for any help.

[legacy-S-Dot]

here is a picture to illustrate what I mean:

http://www.s-dot.de/temp/doors.jpg