Simon, the Max2D stuff has stopped working for me. If I run the example in 0.451 it's fine, but 0.5 i just see the teapot.
same here...
I tried also replacing tBlitz2D.beginMax2D & tBlitz2D.endMax2D with old version ones, but nothing: renders only the 3D canvases (with a strange cls artifacts) and back screen in Max2D areas ( out from 3D viewports)