We are encountering some serious problems with Maya 2018.4 and vray proxies: After the update from 2018.3 to .4 old scenes do no longer render as expected. Geometry and shaders all work fine, but proxies only render ‘half’ with random parts missing in the frame. Reverting back to 2018.3 fixed the problem for the time being - as we are on a deadline that seemed like the smartes move for now. Will have someone test some more after the deadline.
Thank you for the report. Our developers are working to get the issues fixed as soon as possible (VMAYA-8075 and VMAYA-8076).
Please use 2018.3 in the meantime. We will write back when they are fixed.
Our developers succeeded to fix the issues. The fixes are included in the nightly builds.
We have encountered the same behavior with Maya2018.5 and V-ray 3.60.04.
Rolling back to Maya2018.3 saved us this time! 