We will add RTX cards support as soon as possible, there is some problems with shipping, we have purchased RTX 2070 and RTX 2080 at December 15th, still today we are waiting for this cards.
Can you help with testing for RTX? I can send debug version for RTX
Maybe I can help if you explain to me what I have to do step by step.
I have a 2080 ti, pm me if you think I can help.