Our 2020 Sonata is also doing the same after the update. Previously it would adjust the seat and mirror as soon the other profile was selected. Now it's hit or miss whether it does it or not, sometimes there's a delay in it happening. Since I very rarely drive the Sonata (it's my wife's), I don't care, just as long as her settings remain.Did you ever get this issue resolved. We have the same issue. It only started after the April upgrade on our 2021 Santa Fe.
PS: I didn't do any of the interim updates because of the nixie tube display. So it probably would have been happening before had I done them.