We found that our apps (and other apps from different companies) cannot launch on iOS 9 to iOS 12 devices. The app can be installed successfully but crashes immediately on launch. From the device syslog: assertiond: The process failed to exec SpringBoard: Bootstrapping failed - Unable to bootstrap process Our distribution certificate was issued on Feb 2, 2026, signed by WWDR G3 intermediate certificate. This issue affects all apps under our Apple Developer account on iOS 9-12 devices. iOS 13 and above works fine.

*** Terminating app due to uncaught exception 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [nan 106.333]. Layer: <CALayer:0x15c3f2d60; position = CGPoint (0 0); bounds = CGRect (0 0; 0 57.6667); delegate = <_UIEditMenuListView: 0x162400780; frame = (0 0; 0 57.6667); anchorPoint = (30, 0); alpha = 0; layer = <CALayer: 0x15c3f2d60>>; sublayers = (<CALayer: 0x1625005a0>, <CALayer: 0x15c3f2130>); opaque = YES; allowsGroupOpacity = YES; anchorPoint = CGPoint (30 0); opacity = 0>'

Recently, our app has received feedback that WKWebview will get stuck when opening some web pages, and then the entire web page in the app will have problems opening. The feedback group is iOS17.5 or iOS17.5.1, other systems do not have this problem. Have you ever encountered such problems？ and what direction should be taken to solve this problem?