Keyshot 7 glass rendering problem

[BJT_DAVE]

Never had a problem with this in KS6 but since upgrading to KS7 when we render basic glass in Interior mode and output as a psd with transparency, the model is masked out where the glass was?! It looks OK in the render window but when we open the psd file this is what we see. Renders OK in other lighting modes but not interior. We need to use the faster interior mode a lot. Has anyone else had this issue? The top image is with a transparent bg, the middle one is with a white layer below it and the last one is rendered using product mode.