4 ShareSheet 0x668b0 __38-[SHSheetMainInteractor _runActivity:]_block_invoke + 60 5 ShareSheet 0x739ec -[SHSheetActivityPerformer _completePerformingActivityWithState:returnedItems:error:] + 812 6 ShareSheet 0x73270 __57-[SHSheetActivityPerformer performWithCompletionHandler:]_block_invoke + 100 7 ShareSheet 0x3a740 -[UIActivity activityDidFinish:items:error:] + 184 8 ShareSheet 0x86524 __41-[UIOpenInIBooksActivity performActivity]_block_invoke + 244 9 UIKitCore 0xf32198 __61-[UIPrintInteractionController _endPrintJobWithAction:error:]_block_invoke + 432 10 Foundation 0x1793a0 -[_NSBarrierOperation main] + 76 11 Foundation 0x3b6f4 NSOPERATION_IS_INVOKING_MAIN + 24