Steps to reproduce:
1. Make sure you have a system with Oculus VR support and device connected
2. Open QA attached project
3. Press play and hold the "End" key
4. Observe rendering on Game screen appear and crash the Editor almost immediately

Expected result(Observed on a system with Oculus support disabled): Mesh gets rendered and extends freely while user is pressing "END" key
Actual result: Upon being created the mesh crashes Editor

Reproduced on 5.6.0f3, 5.6.0p4, 2017.1.0b4

Notes: Couldn't test for regression, because project works with compiled DLL's that don't work entirely on 5.5.* (Although it wouldn't crash on 5.5 as the user claims)