Been going insane trying to figure this out... but I've made some headway. It has to do with map and exr files. Optimized textures should render faster, but for me they render blank or red and the system tells me that the files and data within are invalid. At first I thought it was network rendering only, but I now know that it isn't JUST network renders, but also pure local renders do it SOMETIMES though less consistently. I've looked through manuals, forums, etc, but no one seems to have had my issue. Ideas, anyone?