Unity 5.4.0b14 freezes in editor

Hello, I’m having some serious problems. I currently have the unity 5.4.0b14 and when i play one of my scenes in the editor it just decides too freeze out of nowhere. It’s not freezing on any apparent call or something. This only seems to be happening in this specific scene.
Any tips on how to fix this?

Fixed it, it had to do with some polygon colliders. When i replaced them with circle colliders it fixed the problem.