I’m also seeing this issue on my end. In our app we use Swift Charts inside a ScrollView, with simultaneous gestures applied in the chart’s overlay block (for interactions like drag/tap on data points). Since iOS 26 beta 1, this completely breaks the parent ScrollView’s vertical scrolling. This was never a problem on iOS 18, the exact same code works fine there. I also noticed that the release notes for beta 5 and beta 6 mention fixes for simultaneousGesture conflicts in scroll views, but this bug is still reproducible. So unfortunately, it’s not fixed yet, and I haven’t found a workaround so far.