I noticed the output from backplanesISIS albedo doesn't line up with the topography data. I confirmed this by looking at the output from backplanesGMT and by looking at the global albedo. The data has to "rotate right" and "flip horizontally" to line up (as viewed in Preview). If I remember correctly, we spent some time messing with the topography code to get it right, so you should be able to just copy what you did for the topography code into the albedo code.
I noticed the output from backplanesISIS albedo doesn't line up with the topography data. I confirmed this by looking at the output from backplanesGMT and by looking at the global albedo. The data has to "rotate right" and "flip horizontally" to line up (as viewed in Preview). If I remember correctly, we spent some time messing with the topography code to get it right, so you should be able to just copy what you did for the topography code into the albedo code.