Alpha issue, user feedback required

[racoonart]

I'm currently struggling with an Alpha issue of unknown origin. Since I'm having the issue and keymaster does not it would be helpful if some of you (the users) would help to confirm it.
You just need to open the scene (max 2014 or 2015) and press render. A little framebuffer will open with an image that was combined via a maxscript postrender callback showing the error. Please save it as a jpg and upload it here + note the corona version you're using (daily build date or A6)

Thanks everyone.

[romullus]

3ds max 2014 sp3
Corona: build timestamp: Apr 18 2014 00:12:11

[maru]

Max 2014
Build timestamp: Apr 14 2014 16:32:22
Corona version: Daily build post-A6, Maxsdk version: 2013

[maru]

and

Max 2014
Build timestamp: Apr 18 2014 00:12:11
Corona version: Daily build post-A6, Maxsdk version: 2013