I have applied restraints to 5 of the 6 degree of freedom to a face of a part. I have not restrained one of the rotation freedoms. I get this warning:

"rotation constraints were not taking into account as mesh part is 3D"

What does this warning signify? Does it mean that all rotations were constrained? Or that no rotation were constrained (which seems unlikely). How does a 3D mesh affect the application of constraints.