I am currently trying to create collision for a simple I created in Blender. I do know of the use of “Use Complex Collision of Simple”, but I need to figure out how this works for other models as well. However, when I rename another mesh UCX_Map and import them into UE4 together (the mesh is named Map), the scale of the collision mesh is off, and it seems to have extra polys as well. I have tested this several times, first with a copy of the map for exact collision, then with a simple cube encompassing the map. Both have this issue. I have uploaded two images that show what is happening.
The first shows the collision with the cube:
The second with a copy of the mesh as the collision mesh:
Any input on what is happening or how to fix it would be great! Any ideas are appreciated.