In our physics system we have just added a couple of boxes right above each other. Everything seems to be working fine in the start of the simulation, but just after a couple of iterations, usually after a collision between boxes, the positions of the bodies suddenly returns "NaN". We have followed "Basic World" tutorial, and also looked at the JigLibGame-project from the release, but we can't find anything that differs from our implementation.
Any help would be greatly appreciated,
thanks in advance!