This is reproducible w/o VR mode

Happens here:

Version 5.4.0b17 (a34abf3bb95e)
Mon, 25 Apr 2016 10:57:32 GMT
Branch: 5.4/release

Does not happen here:

Version 5.3.4p4 (43a3882ae25c)
Sat, 16 Apr 2016 21:14:40 GMT
Branch: 5.3/patch-release

0) Download project attached by Will J. in bug assignment.
1) Open the RocketToss Scene.
2) Enter play mode
3) Click on start game
4) Wait for the pink rockets to appear below the camera (I stripped out some art assets to make the project smaller.
NOTE: Ignore errors that state need for OVR manager or oculus camrea.
5) Press 'T' to toss a ring.
6) Line up a shot on one of the rockets using 'WASD' to rotate camera. (Q and E will roll camera as well).
7) Hit the rocket with one of the rings using 'T'
NOTE: You need to get the ring over the rocket for a direct hit.
8) Once you get a direct hit observe the editor crash

This crash occurs in editor, in the standalone player and on android.