Superior Rune of the Afflicted
Do you have them in your sPVP armor too? Mine is displaying higher than I have, and I think that’s why. Don’t have 6 of them though so no idea on the Death Nova.
I also have this bug with the superior rune of the afflicted. I just bought two runes and it it saying that I have 8/6 in red font signifying that I have two more runes than max. The stats for having all six runes are in blue font signifying that I have the stats active. I’m only getting credit for the two active. I also don’t death nova when downed. However, I do not remember ever being permanently locked in place. I don’t have this issue with my sPVP armor.