Mudbox Opacity not working for all of model

Stu2Prof

Hi guys I was working on Mudbox today and noticed that my opacity layer wasn't effecting my complete model. I tried regular painting as well as the flood function but in both cases only 2 sections of my model become effected. The model was exported from maya as an obj with all parts seperated out in Maya so that I could show/hide them seperately in Mudbox. Anyone else had this problem?

Thanks

oglu

does they share the same material?
are the uvs ok.?

Stu2Prof

UVs were fine but I re-exported the original base mesh from Maya with multiple materials and now the Opacity seems to be working fine. It also seems to have fixed the issue for the original mudbox project file so I havent lost any work