W7 SP 1
Short description of error
Just one object is rendered out black in cycles when motion blur is enabled. Investigated it, and found nothing out of the ordinary and/or illegal to make that happen. Stumped!!!
Exact steps for others to reproduce the error
1- Download the file from https://dl.dropboxusercontent.com/u/28170294/PL11_RV01_01.blend
2- Render a frame pressing F12
3- You'll see that the "ARM BRACELETS" object renders out black.
4- Disable motion blur and re-render
5- The material on the object correctly renders.
6- Swap the gold material with another, the result is the same.
7- You can also check out https://dl.dropboxusercontent.com/u/28170294/PL10_RV01_01.rar There the bracelets render just fine with Motion blur despite the fact that everything is the same.