I've been able te reproduce it while using the Xcode accessibility inspector. The concerning page holds numerous UI elements which used to work fine with voice over. I've been looking all over the internet but up to now it feels like we're the only one with this problem.
`Foundation.MonoTouchException: Objective-C exception thrown. Name: NSRangeException Reason: NSConcreteAttributedString attributedSubstringFromRange:: Out of bounds Native stack trace: 0 CoreFoundation 0x00007fff23e3de6e __exceptionPreprocess + 350 1 libobjc.A.dylib 0x00007fff512539b2 objc_exception_throw + 48 2 Foundation 0x00007fff25a0dfb6 -[NSAttributedString attributedSubstringFromRange:replacingCharactersInRanges:numberOfRanges:withString:] + 0 3 UIKit 0x000000011a6595c2 __58-[UITextViewAccessibility _accessibilityParagraphElements]_block_invoke + 216 4 Foundation 0x00007fff25966dc3 -[NSString enumerateSubstringsInRange:options:usingBlock:] + 2104 5 UIKit 0x000000011a6593e9 -[UITextViewAccessibility _accessibilityParagraphElements] + 436 6 UIKit 0x000000011a6577a8 -[UITextViewAccessibility accessibilityElements] + 45 7 UIAccessibility 0x00007fff486f8d9a -[NSObject(AXPrivCategory) _accessibilityElements] + 69 8 UIAccessibility 0x00007fff4871b602 -[NSObjectAccessibility accessibilityElementCount] + 81 9 UIAccessibility 0x00007fff486f8821 -[NSObject(AXPrivCategory) _accessibilityHasOrderedChildren] + 46 10 UIAccessibility 0x00007fff486ef186 -[UIView(UIAccessibilityElementTraversal) _accessibilityShouldBeAddedToViewChildrenWithOptions:] + 214 11 UIAccessibility 0x00007fff486efabb -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 164 12 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 13 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 14 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 15 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 16 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 17 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 18 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 19 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 20 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 21 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 22 UIAccessibility 0x00007fff486eff45 -[UIView(UIAccessibilityElementTraversal) _addAccessibilityElementsAndOrderedContainersWithOptions:toCollection:] + 1326 23 UIAccessibility 0x00007fff486f03de +[UIView(UIAccessibilityElementTraversal) _accessibilityElementsAndContainersDescendingFromViews:options:sorted:] + 507 24 UIAccessibility 0x00007fff486f0b2d -[UIApplication(UIAccessibilityElementTraversal) _accessibilityViewChildrenWithOptions:referenceWindow:] + 561 25 UIKit 0x000000011a618588 -[UIApplicationAccessibility _accessibilityElementFirst:last:forFocus:allowScrolling:] + 206 26 UIKit 0x000000011a61cb2a -[UIApplicationAccessibility _iosAccessibilityAttributeValue:] + 728 27 UIAccessibility 0x00007fff486e40da _copyAttributeValueCallback + 432 28 AXRuntime 0x00007fff2e735816 ___AXXMIGCopyAttributeValue_block_invoke + 46 29 AXRuntime 0x00007fff2e7356e3 _handleNonMainThreadCallback + 55 30 AXRuntime 0x00007fff2e7355a6 _AXXMIGCopyAttributeValue + 286 31 AXRuntime 0x00007fff2e72e0f3 _XCopyAttributeValue + 269 32 AXRuntime 0x00007fff2e745ba6 mshMIGPerform + 237 33 CoreFoundation 0x00007fff23da2449 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION + 41 34 CoreFoundation 0x00007fff23da1a48 __CFRunLoopDoSource1 + 472 35 CoreFoundation 0x00007fff23d9c474 __CFRunLoopRun + 2228 36 CoreFoundation 0x00007fff23d9b8a4 CFRunLoopRunSpecific + 404 37 GraphicsServices 0x00007fff38c39bbe GSEventRunModal + 139 38 UIKitCore 0x00007fff49325968 UIApplicationMain + 1605 39 ??? 0x0000000109b53095 0x0 + 4457836693 40 ??? 0x0000000109b52de3 0x0 + 4457836003 41 ??? 0x00000001093c69f3 0x0 + 4449921523 42 Mono 0x0000000103204641 mono_jit_runtime_invoke + 1569 43 Mono 0x00000001033f8cd8 mono_runtime_invoke_checked + 136 44 Mono 0x00000001033ff045 mono_runtime_exec_main_checked + 117 45 Mono 0x000000010325f16c mono_jit_exec + 364 46 MHMobileAppsNewsAppiOS 0x0000000102c958cd xamarin_main + 2685 47 MHMobileAppsNewsAppiOS 0x0000000102c52237 main + 71 48 libdyld.dylib 0x00007fff520ce1fd start + 1
at ObjCRuntime.Runtime.ThrowNSException (System.IntPtr ns_exception) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.18.3.2/src/Xamarin.iOS/ObjCRuntime/Runtime.cs:406 at ObjCRuntime.Runtime.throw_ns_exception (System.IntPtr exc) [0x00000] in /Users/builder/jenkins/workspace/xamarin-macios/xamarin-macios/runtime/Delegates.generated.cs:128 at at (wrapper native-to-managed) ObjCRuntime.Runtime.throw_ns_exception(intptr) at at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr) at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.18.3.2/src/Xamarin.iOS/UIKit/UIApplication.cs:86 at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.18.3.2/src/Xamarin.iOS/UIKit/UIApplication.cs:65 at MH.MobileApps.NewsApp.iOS.Application.Main (System.String[] args) [0x0001c] in /Users/erland/Projects/Mediahuis/projects/NewsApp/NewsApp.iOS/Main.cs:15`
