I was trying to figure out why my bottom sheet looks weird and doesn't have the "proper glass" look. I found that this issue seems to be new to iOS 26.1.
See the images below, they show the same view hierarchy (in this case UIHostingController configured as bottom sheet that has NavigationStack and content.
On iOS 26.1 there seems to be extra two layers of background - even though I am no adding any.
iOS 26:
iOS 26.1
Has anyone experienced something similar? Any workarounds? I am happy to completely disable the glass effect for this bottom sheet if it helps.
The screenshots show one sheet, but the same thing happens for another ones.