I tried changing my project to run with OpenGLES2 on the relevent devices, and my entire background environment object disappeared.
My foreground objects render fine though.
Is there any known issue which could cause this?
potentially it just works with es 1.1 cause it uses a fixed function anomaly / feature which requires specific shader code to continue to work on es 2.0.
but without knowing more what those objects do and how their materials are setup its hard to say.
All the objects are simple geometry, single texture, with baked vertex colours.
Setting the materials to use the standard diffuse shader doesn’t have any positive effect, so pretty lost as to what it could be.