I thought P5 is backwards compatible and doesn't that mean that it's able to read and interpret a P4/ProPack Matpose the way it's intended and not the way it thinks it's intended? So P5 should put the bump files (no matter if they are supplied as .bum or .jpg file) into the approbiate node and not to the gradient bump node that has no effect at all. Just my 2 cents.

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