Isn't that just the way msi-ab reports the edge & hotspot temps. on newer model cards?
OP should be asking the question on afterburner support forum for any queries on their software.
My PC- Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, NM790 2TB, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T.