The crash history shown in Xcode shows a lot of crash highlighted at UICollectionView _updateLayoutAttributesForExistingVisibleViewsFadingForBoundsChange The stack trace shows now application code directly involved, there is even no hint found regarding UICollectionView _updateLayoutAttributesForExistingVisibleViewsFadingForBoundsChange. After this call an assertionHandler triggers. Has anyone seen this or a hint what causes this crash? Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Termination Reason: SIGNAL 6 Abort trap: 6 Terminating Process: app [2425] Triggered by Thread: 0 Last Exception Backtrace: 0 CoreFoundation 0x1a3f3eb28 __exceptionPreprocess + 164 (NSException.m:249) 1 libobjc.A.dylib 0x19bd92f78 objc_exception_throw + 60 (objc-exception.mm:356) 2 Foundation 0x1a33a3920 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 188 (NSException.m:252) 3 UIKitCore 0x1a614a464 -[UICollectionView _updateLayoutAttributesForExistingVisibleViewsFadingForBoundsChange:] + 1992 (UICollectionView.m:0) 4 UIKitCore 0x1a6149858 -[UICollectionView _updateVisibleCellsNow:] + 3132 (UICollectionView.m:5688) 5 UIKitCore 0x1a6148b2c -[UICollectionView layoutSubviews] + 304 (UICollectionView.m:6953) 6 UIKitCore 0x1a61010f8 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1528 (UIView.m:20041) 7 QuartzCore 0x1a552be30 CA::Layer::layout_if_needed(CA::Transaction*) + 504 (CALayer.mm:10816) 8 QuartzCore 0x1a552b9b4 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 148 (CALayer.mm:2598) 9 QuartzCore 0x1a5531bb4 CA::Context::commit_transaction(CA::Transaction*, double, double*) + 464 (CAContextInternal.mm:2760) 10 QuartzCore 0x1a552b1bc CA::Transaction::commit() + 648 (CATransactionInternal.mm:432) 11 QuartzCore 0x1a552ae64 CA::Transaction::flush_as_runloop_observer(bool) + 88 (CATransactionInternal.mm:942) 12 UIKitCore 0x1a6179260 _UIApplicationFlushCATransaction + 52 (UIApplication.m:3160) 13 UIKitCore 0x1a6178d78 _UIUpdateSequenceRun + 84 (_UIUpdateSequence.mm:119) 14 UIKitCore 0x1a6178468 schedulerStepScheduledMainSection + 144 (_UIUpdateScheduler.m:1037) 15 UIKitCore 0x1a6178524 runloopSourceCallback + 92 (_UIUpdateScheduler.m:1186) 16 CoreFoundation 0x1a3e8962c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1957) 17 CoreFoundation 0x1a3e888a8 __CFRunLoopDoSource0 + 176 (CFRunLoop.c:2001) 18 CoreFoundation 0x1a3e87058 __CFRunLoopDoSources0 + 244 (CFRunLoop.c:2038) 19 CoreFoundation 0x1a3e85d88 __CFRunLoopRun + 828 (CFRunLoop.c:2955) 20 CoreFoundation 0x1a3e85968 CFRunLoopRunSpecific + 608 (CFRunLoop.c:3420) 21 GraphicsServices 0x1e81834e0 GSEventRunModal + 164 (GSEvent.c:2196) 22 UIKitCore 0x1a62f8edc -[UIApplication _run] + 888 (UIApplication.m:3692) 23 UIKitCore 0x1a62f8518 UIApplicationMain + 340 (UIApplication.m:5282) 24 app 0x1028edf68 main + 176 (main.swift:5) 25 dyld 0x1c73a7d84 start + 2240 (dyldMain.cpp:1298) Kernel Triage: VM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter VM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter VM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter

Hi all, just got my new M1 Macbook Air. installed Xcode updated Big Sur When I start Xcode i get a request with the message: "To run Intel-based applications, you will need to install Rosetta. Would you like to install it now?" The options are : Help, Not Now, Install When I click on any of these buttons nothing happens (i get a sound that tells me i click, but nothing else). Can't close it, can't get around it ... Any hints on this issue? Thank's for your help, Tom