[quote="ansmesnobody":31tlyema]Is 3D box still busted?
That would also technically make it backwards incompatible
As far as I can tell it is. It'll render properly when 3D layering is enabled (since that is how it's supposed to be) but if you put it in a background layer that doesn't scroll at 100% and then move, they'll vanish. I filed a bug report on it about a month ago with an example attached, I dunno if it's been looked at.