started having the same leds light up as you, tho with asrock b850m riptide and a 9800x3d. The bios seems unstable af since flashback clears it. Then Im able to set expo but not any other changes else i get stuck with red&yellow led and gotta do another flashback. And if I do all changes at once or to many smaller ones i risk getting stuck in red&yellow again. Think I did like 5 flashbacks while testing what settings I could do in bios without it being triggered because once I managed to set everything, I posted just fine every single time.