Help with union!

[Y0utube_Dino (DevDino)]

Hiya Developers!

Why when i approach my Union, i seem to walk up some sort of invisible barrier?
Here is the footage: Streamable

Any ideas?

[Y0utube_Dino (DevDino)]

Fixed it, simple issue of changing the collision fidelity to

[TJMagical (teej)]

Did you union the entire wall as one part?