Interpreting a hang log

I have a hang log, too large to copy past all of it here. It showing [NSNotificationCenter postNotificationName:object:userInfo:] in the stack. Does that mean there was a hang attempting to post a notification? How could that cause a hang, once the app posts a notification its out of its hands and in the hands of the OS. Or is that a red herring?

How do I attach the full .ips file? When trying to add it via the Add File option, its grey and not selectable, if I change the extension .txt it says its too large to attach. Also how to format this? Copy/pasting it looks fine, but after hitting the save button all the formatting is lost. Formatting it as quote or code block also looses it all.

Event: Timed Out Runloop Hang Duration: 9.99s Duration Sampled: 3.57s Steps: 344 (10ms sampling interval) Report threshold: 2s

`Heaviest stack for the main thread of the target process: 344 start + 2240 (dyld + 24012) [0x1d8996dcc] 344 ??? (CallFilter + 69812) [0x10006d0b4] 344 UIApplicationMain + 340 (UIKitCore + 2276456) [0x1b8080c68] 344 -[UIApplication _run] + 888 (UIKitCore + 2278956) [0x1b808162c] 344 GSEventRunModal + 164 (GraphicsServices + 13560) [0x1f91de4f8] 344 CFRunLoopRunSpecific + 608 (CoreFoundation + 210040) [0x1b5c5d478] 344 __CFRunLoopRun + 828 (CoreFoundation + 211096) [0x1b5c5d898] 344 __CFRunLoopDoSources0 + 340 (CoreFoundation + 215996) [0x1b5c5ebbc] 344 __CFRunLoopDoSource0 + 176 (CoreFoundation + 222120) [0x1b5c603a8] 344 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 28 (CoreFoundation + 225580) [0x1b5c6112c] 344 -[FBSMainRunLoopSerialQueue _performNextFromRunLoopSource] + 28 (FrontBoardServices + 41848) [0x1ce0c4378] 344 -[FBSMainRunLoopSerialQueue _targetQueue_performNextIfPossible] + 240 (FrontBoardServices + 42144) [0x1ce0c44a0] 344 FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK + 52 (FrontBoardServices + 42272) [0x1ce0c4520] 344 _dispatch_block_invoke_direct + 284 (libdispatch.dylib + 32072) [0x1bdc24d48] 344 _dispatch_client_callout + 20 (libdispatch.dylib + 17152) [0x1bdc21300] 344 __92-[FBSWorkspaceScenesClient createSceneWithIdentity:parameters:transitionContext:completion:]_block_invoke + 352 (FrontBoardServices + 106380) [0x1ce0d3f8c] 344 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 168 (FrontBoardServices + 57756) [0x1ce0c819c] 344 __92-[FBSWorkspaceScenesClient createSceneWithIdentity:parameters:transitionContext:completion:]_block_invoke.108 + 280 (FrontBoardServices + 62832) [0x1ce0c9570] 344 -[FBSScene _callOutQueue_didCreateWithTransitionContext:completion:] + 324 (FrontBoardServices + 63188) [0x1ce0c96d4] 344 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 288 (UIKitCore + 2422752) [0x1b80a47e0] 344 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 508 (UIKitCore + 2423368) [0x1b80a4a48] 344 -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] + 244 (UIKitCore + 1274564) [0x1b7f8c2c4] 344 -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] + 216 (UIKitCore + 1274964) [0x1b7f8c454] 344 __64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke.225 + 612 (UIKitCore + 4964520) [0x1b83110a8] 344 -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] + 316 (UIKitCore + 1278672) [0x1b7f8d2d0] 344 _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion + 224 (UIKitCore + 1279520) [0x1b7f8d620] 344 +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:fromCurrentState:actions:completion:] + 736 (UIKitCore + 1281432) [0x1b7f8dd98] 344 __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke + 148 (UIKitCore + 1281680) [0x1b7f8de90] 344 -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] + 248 (UIKitCore + 1281984) [0x1b7f8dfc0] 344 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 608 (UIKitCore + 1283672) [0x1b7f8e658] 344 -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] + 332 (UIKitCore + 1289296) [0x1b7f8fc50] 344 __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke + 216 (UIKitCore + 2175308) [0x1b806814c] 344 _UIScenePerformActionsWithLifecycleActionMask + 112 (UIKitCore + 1621112) [0x1b7fe0c78] 344 __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke_2 + 108 (UIKitCore + 1621280) [0x1b7fe0d20] 344 -[UIApplication _stopDeactivatingForReason:] + 1240 (UIKitCore + 1623808) [0x1b7fe1700] 344 -[NSNotificationCenter postNotificationName:object:userInfo:] + 92 (Foundation + 173988) [0x1b4bee7a4] 344 _CFXNotificationPost + 724 (CoreFoundation + 188728) [0x1b5c58138] 344 _CFXRegistrationPost + 440 (CoreFoundation + 191464) [0x1b5c58be8] 344 ___CFXRegistrationPost_block_invoke + 88 (CoreFoundation + 191648) [0x1b5c58ca0] 344 CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER + 148 (CoreFoundation + 193240) [0x1b5c592d8] <snip>

Thread 0x403e DispatchQueue "com.apple.main-thread"(1) 344 samples (1-344) priority 47 (base 47) 344 start + 2240 (dyld + 24012) [0x1d8996dcc] 344 ??? (CallFilter + 69812) [0x10006d0b4] 344 UIApplicationMain + 340 (UIKitCore + 2276456) [0x1b8080c68] 344 -[UIApplication _run] + 888 (UIKitCore + 2278956) [0x1b808162c] 344 GSEventRunModal + 164 (GraphicsServices + 13560) [0x1f91de4f8] 344 CFRunLoopRunSpecific + 608 (CoreFoundation + 210040) [0x1b5c5d478] 344 __CFRunLoopRun + 828 (CoreFoundation + 211096) [0x1b5c5d898] 344 __CFRunLoopDoSources0 + 340 (CoreFoundation + 215996) [0x1b5c5ebbc] 344 __CFRunLoopDoSource0 + 176 (CoreFoundation + 222120) [0x1b5c603a8] 344 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 28 (CoreFoundation + 225580) [0x1b5c6112c] 344 -[FBSMainRunLoopSerialQueue _performNextFromRunLoopSource] + 28 (FrontBoardServices + 41848) [0x1ce0c4378] 344 -[FBSMainRunLoopSerialQueue _targetQueue_performNextIfPossible] + 240 (FrontBoardServices + 42144) [0x1ce0c44a0] 344 FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK + 52 (FrontBoardServices + 42272) [0x1ce0c4520] 344 _dispatch_block_invoke_direct + 284 (libdispatch.dylib + 32072) [0x1bdc24d48]