Hi, Thank you for the details, It seems the issue occurs when Image to Material (AI Powered) and the Stylization filter are in the same stack. Both can export Opacity correctly otherwise.
Upon exporting an .sbs it appears there's an error in the export where the opacity is assigned as a color map instead of grayscale. I would say this is a pretty serious export bug.
I think the problem is the stylization filter, it appears opacity does not export properly at all if that filter is added, I had to bypass the filter in substance designer to fix the problem.
Hi, Thank you for the details, It seems the issue occurs when Image to Material (AI Powered) and the Stylization filter are in the same stack. Both can export Opacity correctly otherwise.