Collision issue

Hey, i hope this is the correct place to post this. My first post!

I’m trying to generate a VR project of a building i’m doing in my spare time to get some practice in. I have noticed that i’m having some issues when walking up close to objects. I have an Oculus headset and i find this issue even in the example “First person shooter” project. (using 4.14)
Take the large cuboids in the example 1st person shooter file, when i walk up and along the right hand side, it goes flush against the side (walking in both directions) but when i walk up the other side of the cuboid i cannot get flush up against the object. It seems the collides are all offset like 50cm in the same direction.

Can anyone offer advice on this issue please?

Thanks in advance