I'm tested 1.3.2 update. For 8Gb Polaris hashrate remained at the same level - 1100 h/s. 4GB Polaris lost performance -725 h/s against 762 h/s in 1.3.1. 4Gb Hawaii productive same level - 670-690 h/s.
same is happening with me.
i dont know, it doesnt makes sense. i never changed any settings.
rig 1:
power color rx 570 red devil 4gb x 13pcs
previous versions: total of 10,400 h/s (cn heavy)
latest: 10,200 h/s (cn heavy)
rig 2:
sap rx570 nitro+ 4gb x 13pcs
nothing has changed