Problems reading all 3d channels with ProEXR in AE

Im using the ProEXR plugin in AE to read 3d channels in an OpenEXR file rendered from blender. It seems to read the Z-depth channel ok but no other channels show up. Does anyone know what the problem might be? The ProEXR manual says the plugin can read any 3d channel as long as its floating point. I’m wondering if the only channels blender is rendering in float is R,G,B,A,Z. As I said, It doesnt seem to be reading any other channels even though I have them selected to render. Anyones help is appreciated.

The Open EXR blender format does not hold all data, you need to select Multilayer.
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