MoI has detected an unexpected condition (non-fatal).

 From:  NightCabbage
4882.1 
Hey Michael

I've been getting this error a lot, just today. Never seen it before.

"MoI has detected an unexpected condition (non-fatal). ..."

It comes up when I'm creating a 3pt Arc.

Any ideas what the problem could be?

-EDIT-

Seems to happen mainly when I'm creating the curve from a snap - I place the first point, and then I move the mouse ready to place the second point, but before I can do this, it comes up with the error.