Transparency material glitch

Hi, I am making some filters where people can try out sunglasses. I am getting this glitch on some of the transparent material shaders on the lens. I have used the exact same patches in all my filters, but only 2 of them get this.

Does anyone know what the problem might be?

I’m not sure why it’s doing that, offhand. Is it only an issue on device, or do you see it happen in the simulator too?

What are you using to make the transparent materials? Are you feeding an alpha map somewhere? If so, I’d start by checking the optimisation settings.
Else I’d need a better understanding of what the patches you’re talking about are doing.