RvSeok,
Would you mind sharing what changed have you done to your edid that get it to work for you? Or if you’d u could share your edid - that would be even better 
I have 30Hz running smooth with no errors but can’t get 24hz to work. I am getting half frame rate.
Systems similar to yours: threadripper cpu, dual A6000 and Quadro sync card.
We have external house clock and a lot of AV equipment down the line of LED Processors but can’t get this 24Hz issue resolved.
Thanks in advance