Beta 21 crash on "ClosestHeightPointTriangle" only on iOS

Here is a screenshot

Not sure, why it is crashing only on iOS, I’m not expert to know if this is a bug in Unity3D 5 or is it my fault, if it’s a bug then what’s the best way to post it to Unity3D beta team? What details do they need?

Please report a bug, see here for details http://unity3d.com/BugReportingFAQ

Thanks, I did it, I wasn’t sure if it’s related to me only or not.