Collision boxes not working

Hello everyone. I am kinda new and I dont know what may be going wrong. These are the screenshots I have:

://prntscr/3icsq5
://prntscr/3icswp

One is from UDK and one from Unreal 4.

Its crazy that my mesh and the collision boxes work for the UDK and not for Unreal 4, especially when unreal 4 is payware (thanks epic for letting indie developers grow instead of paying a lot of money, they dont have). I was really satisfied with U4, until this happened. Any ideas?

Disable “one convex hull per…” in the import settings, then it should work correctly :slight_smile:

Also take a look at this tutorial:

Thanks for the quick answer. However, when I disable it, the collision boxes Unreal detects are the same but shows half of them:

://prntscr/3idmy3

instead of

://prntscr/3idnj4

P.S: everything should be rectangular