You can add me to the list of RBG controller issues too. My MB is a ASUS Prime TRX40 PRO. Case is a View 37.
Same problem as above. Thermaltake sent me a new Controller Board and I sourced a new (better) connector cable
Long story short... problem remains. I have tried all of the various combinations. NONE solve the problem. (new board, new cable) (new board old cable) (old board, old cable) (old board new cable) I have also tried all three current versions of the AURA software available from the ASUS web site... Nope.
Before I ditch these fans I'm off to the electronics store to try and rewire them into a third party controller.
Otherwise I love the case and the airflow and thermals on my Threadripper system is VERY GOOD.