Do you mind clarifying which cable is which? I've just submitted an RMA request as I'm finding the same ol' issues as others have stated - frequent inability to POST; hard locks and up to 50% performance degradation on the rare occasion I'm able to actually do anything. Put everything back to horizontal alignment, and it all returns to normal.
The identifying string on the PCB of my riser is: DJ-PCB10150A ... If I read your post correctly, this sounds like it's the newer riser?
Does that include international customers, or are we still sticking with email@example.com ?