Ah, didn't notice that.
Woops, I just realized I posted the attatchments in the wrong topic! I had this AND the v21 bugs topic up at the same time LOL
The issue there is also the fact that:
The glasses behind the glass are only visible from SOME angles behind SOME faces.
Also, bricks painted with Undulo are not visible behind other transparent bricks, not sure if it applies to water fx too.