Latest build from 2015-01-19 seems very unstable.
For me it crashed 5 times in a last half hour on a simplest operations, like loading and changing bitmaps in diffuse slot or startind IR.
Is this happens only for me or anyone else have same problems with stability?)
And also Start IR button from VFB doesn't work, every time i click on ot - 3dsmax crashes immediatelly.