Collision Problem of Outpost meshes in-game (UT) in the editor working fine

Development Platform & Builds
1

Hello!

Can anyone please have a look at this?

I packaged the map at least 5 times now with various settings in the collision options of these outpost-meshes, problem still remains ---->

https://forums.unrealtournament.com/showthread.php?19652-weird-Collision-behaviour-on-Outpost-Meshes-Need-help-please!http://

would be very thankful, if someone could give me answer.
I guess this is a bug?