Sure thing. I have two samples, both are pretty basic but one is nothing but a rectangle collision. The broken mesh have no pattern as they vary from a little complicated to nothing more than a cube needed for collisions.
I do want to point out I checked the 4.15 preview yesterday and sampled these mesh and a bunch of others and the collision shape issues are gone and they are all back to the expected outcome. However, there is a flickering issue (in both 4.14 and 4.15 preview) that happens constantly as well. I’ve included a tiny sample of the flickering too.
for the help.
Edited (wall 1 wasn’t the right version):
https://drive.google.com/open?id=0B0MFVJaG16UKVkRGa0JPVHRwRHM
https://drive.google.com/open?id=0B0MFVJaG16UKUmVXWXB6SldOalk