Unknown exception - code 00000001

I am experiencing this crash quite often while playing the game. It doesn’t happen every time but frequently. I always regulate the sun speed to change day\night cycle and the crash often happens. I don’t know whats the reason for it, maybe it could be somehow connected to this crash that I’ve reported earlier - https://answers.unrealengine.com/questions/326427/access-violation-code-c0000005-firstsecond-chance-5.html , but I am not sure.
Anyway I can provide a version of the project that I am working on. Right now, here are the docs - link text

Hi Kvazimodo -

This is the same bug as you reported in 4.8 on your other Answerhub post. The 4.9 Callstack looks different but the results from the same issue. For reference again, the bug was reported as UE-23236.

Thank You

Eric Ketchum