Crash with region render when using dynamics, motionblur and arealights

Hi.
Crash with region render when using dynamics, motionblur and arealights.

In the attached scene it´s only crashing with the region render but in the scene I was working on it´s also crashing with c4d bucketrender.
I cant reproduce that right now but I will post again if I can.

Windows 10 home
Version: B1 daily Apr 26 2017 (core 1.6 RC2)
Cinema version: CINEMA 4D Studio R18.041 S



crashbombang.c4d (212 KB)

Here it also crashes with c4d bucketrender or what you call it..

I tested everything from the videos and it does not crash anymore.