Can't bake material ID am I doing it wrong?

[paolo21874536445b]

It's been working fine for me when i was still using 2019 versions of max and SP. and still did it how I do it before. but somehow it's not working with the 2022 versions.. am I doing something wrong or did i forget something?

[Jeremie Noguer]

Looks like Painter can't find material color data on your model. Did you make sure it was exported with its materials?