In April I finally received the replacement controllers from Thermaltake Australia. They also supplied the USB and Power cables. They looked identical to the original ones and there's no dates or anything to show date of manufacture.
I hadn't had time to install them until today.... and they do not work on my Ryzen machine still, exactly the same result as with the old ones. Almost a year waiting for a Ryzen solution and it does not work.
I suspect because it took them so long to get the apparent 'Ryzen-compatible' controllers in they just sent me the original standard ones to shut me up.
Long story short, warranty is done so I give up on this issue. Good luck all, but my advice is whoever has a Ryzen and these Riing 14 Premium fans to get rid of them and try something else for your Ryzen Machine.