Denoise multiple RGBA_

[1stbeforetheword]

I'm using RGBA AOV with different light sources, also have variance filter settings enabled. But at the render stage, Arnold ignores the same names and I can't denoise the AOV of different lights

[needAccess]

I don't have solution, but I have same problem. 

After this "ignoring duplicates" warning, the .exr still has one variance filter source attached to it. 

Now the source should be RGBA_variance (I understood this as beauty variance) but it shows as RGBA_key (lightgroup variance).