ACT Ceiling No Longer Rendering (VRay)

[Anonymous]

Hello, 

I've been running multiple renderings of a space with ACT tile (as client makes changes). In my original renderings the ACT ceiling showed up perfectly, however now it just renders as a flat ceiling. Be it the same view or a new view, it doesn't seem to matter. I am using Vray to render, so maybe take that into consideration?

Below is my original rendering where the ACT showed up and another showing the flat ceiling I'm getting now. They've all been done in Vray. 

Any thoughts would be helpful and appreciated. Thank you. 

[RDAOU]

@Anonymous 

Did you double check the material appearance asset? maybe it was sharing the same asset with another element and it got changed automatically when the other element was modified...

[Anonymous]

I did. Its still on Auto-Gen in the VRay asset so it should pull the ceiling tiles from the default revit material/family. 
It's never been changed - that's the biggest confusion about this whole thing for me. 

[RDAOU]

@Anonymous 

Auto Gen doesn't necessarily pull the same material from Revit ... ie: it auto generates something based on the Revit material but doesn't necessarily have to be the same 100% match,  there are other factors/settings which could play a role in this

1. Did you check if you have any filters applied in Revit or Phase filters?
2. Did you try to map the material of ACT instead of relying on Auto Gen? Just to test and narrow down where the issue is...