Flat shaded in Meditor and Slate

I have this weird problem in a particular project I’m working on.
All my materials look flat-shaded of fully illuminated in the Slate editor. No difference in the compact editor. Self-Illuminated materials don’t even show up.
The weird thing is that when I do an ipr preview the editor materials start showing correctly.

I must be overlooking something.

Max2024+latest vray version

Hi, thanks for posting. Check if you have accidently changed your material editor renderer to something else than V-Ray:


Change it back to V-Ray and hit the padlock icon.

Omg, How could I have missed this!? Can’t remember changing it though.

Anyway, thanks very much!