I came across this error today when updating the Wall Worm Model Tools. I found various threads on the internet talking about this problem. None solved the error I was producing in WWMT.
I did isolate the cause of it in WWMT. Here is what caused it and my solution. I am sure there are other causes... but I thought that some people here should know about it:
'EXCEPTION_ACCESS_VIOLATION' (assert: 1)
This can happen if you set the $masscenter on a model with $collisionjoints. In WWMT, I had to add a check to see if the model is using $collisionmodel or $collisionjoints. If $collisionjoints, do not include $masscenter.
Hopefully this solves some headeaches.



