Strange repeating Unity3D crash that occurs at the same event but shows no clear cause!

Hi again everyone!

I have just encountered something quite peculiar. It's a crash but I can't seem to figure yet what the cause of it is. Let me describe the situation as best I can.

I'm working in MonoDevelop using the UnityEngine, and no other dependancies. I am coding in a single C# script and this is attached to an actor with a character controller a rigidbody and other stuff that is not relevant to mention at this point. The crash occurs when I run debug in Monodevelop and take these actions:

-Set a breakpoint on a single variable named myCollider (Type = Collider), at the time of the crash the variable contains nothing (null)

-Run the project in debug mode

-Stop the program on a collision hitting the breakpoint

-Mouseover on the variable myCollider, which maintains a collider ( as I can see now)

-And BOOM unity3d crashes and everything else in the debugger says "Evaluating" now when I try to look it up.

Dissasembly shows an attempt of putting information into a register was the cause of the crash.

No it's a not a holy grail of information , I wouldn't be here asking if there was now would I ?

Could it be something as simple as a write operation on a read only ? Or is this trying to look for variables on Collider type which is null causing a crash? It is all in all just a mouseover to see what is in it , and should show NULL not a { UnityEngine.Collider } regardless. Something is wrong either way

I'm stumped for now , and please feel free to ask for more information. I would like to send a message to Unity Tech Group as crash report but not one of the quality it is now.

EDIT 11/15/2010 - 14:52: Extra info to help

Looking at the same variable like this elsewhere has no effect (Also opened the + dropdown normally it crashed on that)

Looking at a variable ControllerColliderHit that is also null gives no problem

Looking at the myCollider variable when it is not Null causes no crash

Ticking the + dropdown box on the variable sometimes does not cause a crash but the type name changes from { UnityEngine.Collider } to (null)

I'm starting to wonder if monodevelop or unity is dying on a NULL reference exception or something