Cannot get Dither Temporal AA to work on mobile (Google Daydream)

I’ve been struggling for a while to figure out why my materials aren’t showing up in my Google Daydream project, and have tracked it down to the Dither Temporal AA node I’m using. I’m using it as a cheaper way to get transparency in a masked material, but it seems to just be killing the whole material. It causes the material to just show up as the default grey tiled texture.

I have tried changing various settings but cannot figure out why this isn’t working. Is there some integral combination of things necessary to make Dither Temporal AA work on mobile, specifically Pixel XL / Daydream?

The materials are showing up fine and working in the Mobile Preview.

My entire project rests fairly heavily on being able to do transparency, so any help much appreciated!