SwitchToFiber called on NULL-pointer

Hello!

I'm using Visual Studio 2015 to simulate my design. When it reaches a
specific size, it throws an exception due to dereferencing a
NULL-pointer inside SwitchToFiber. Is there a way to tweak the settings
somehow, to get around this limitation? Also it would be nice to add
some more asserts to catch the error, when creating the Fiber actually
fails.

best regards

Markus