I have installed 2025 and Vray 7.1. All render blades on our render rack are matching versions of Max and Vray (have checked this multiple times). When I do a basic scene with a vray sun, and a few basic objects. The buckets change the light or gamma or something and I cannot figure out what is going on. It even affects a basic object with no materials applied. All settings are default in vray. Nothing has been touch since installing. Any help would be amazing. Im loosing my mind. Been using this rendering farm for 5 years and nothing has changed on it. Only difference is Max2025 and Vray 7 upgrades. Thanks so much.
I’m pretty sure this is caused by the Autodesk issue, concerning the new Color Management defaults and 3dsmaxcmd.exe (used by both DR and Backburner). Here’s the thread where this was discussed. The issue is fixed in 3ds Max 2026. In previous versions, you can workaround it by setting the Color Management (Rendering > Color Management) mode to Unmanaged and letting V-Ray do the color management. If you don’t intend to use ACES, a simpler solution is to revert to the legacy Gamma Workflow.
Good lord, thanks man! Life saver that was it.

