Maya 2016 Extension 2 UV cage gone

[object8]

A number of objects I UV'ed in Maya 2016 Extension 1 don't show their UV cages in the UV Editor when viewed in Extension 2. It's really weird, their vertices will highlight if I click on them, part of the UV cage will highlight if I use the "Shell" mode, but otherwise it's all gone and I can't see the UV's. 

Everything seems correct and enabling / disabling various features like dimming image, viewport modes, soft selection, etc. Nothing seems to fix it. 

[dudemeh]

Same problem here. I have the UVs selected, nothing shows up in the UV editor. It highlights faces as I mouseover them in the viewport in face select mode, but otherwise it won't show me anything. I can move the gizmo to adjust UVs but I'm pretty much working blind here.