Glad to receive your reply, The following is my simulated error scenario. Before opening the suspension window and moving back to the background, and then opening the system camera, I found a black screen in the suspension window. After exiting the system camera, the suspension window returned to normal, I provide the log for your review！thank you. System log： 默认 11:23:06.969957+0800 Camera Call status: Inactive Recording PIDs (teleprompter) (initial query) 默认 11:23:07.364913+0800 runningboardd Attempting to rename power assertion 35415 for target app<com.meipaifeng.app(5A5C10F8-1846-46E9-AE25-AD2B9262A460)> to app<com.meipaifeng.app(5A5C10F8-1846-46E9-AE25-AD2B9262A460)>;33-28493-426222:interruption began assertion;33-71428-426141:audiomxd(71428).2025.03.26_11:20:14:2014.MediaExperience.79508."com.meipaifeng.app"."sid:0x11704244, teleprompter(79508), 'prim'"."PlayAndRecord".isPlayingProcessAssertion 默认 11:23:07.477669+0800 CommCenter App state[teleprompter (79508)] is moving from kInForegroundRestricted to kInBackgroundRestricted 默认 11:23:07.564157+0800 audiomxd -CMSessionMgr- cmsmGetAudioConfigurationsControlSessions: Arbitrating session={clientName:'sid:0x11704244, teleprompter(79508), 'prim'', preferredHardwareFormat:'LPCM', preferredNumberOfOutputChannels:0, preferredOutputSampleRate:44100.000000} with session={clientName:'sid:0x11704249, Camera(79524), 'prim'', preferredHardwareFormat:'LPCM', preferredNumberOfOutputChannels:0, preferredOutputSampleRate:44100.000000} 默认 11:23:07.564214+0800 audiomxd -CMSessionMgr- cmsmGetAudioConfigurationsControlSessions: Session 'sid:0x11704244, teleprompter(79508), 'prim'' controls AudioFormat because it controls routing 默认 11:23:07.564277+0800 audiomxd -CMSessionMgr- cmsmGetAudioConfigurationsControlSessions: Arbitrating session={clientName:'sid:0x11704244, teleprompter(79508), 'prim'', preferredIOBufferFrames:0, preferredIOBufferDuration:0.020000, preferredOutputSampleRate:44100.000000} with session={clientName:'sid:0x11704249, Camera(79524), 'prim'', preferredIOBufferFrames:0, preferredIOBufferDuration:0.023000, preferredOutputSampleRate:44100.000000} 默认 11:23:07.564327+0800 audiomxd -CMSessionMgr- cmsmGetAudioConfigurationsControlSessions: Session 'sid:0x11704244, teleprompter(79508), 'prim'' controls SampleRate and BufferSize because it controls routing 默认 11:23:07.564378+0800 audiomxd -CMSessionMgr- cmsmGetAudioConfigurationsControlSessions: playingAudioFormatAndOutputSampleRateControlSession=sid:0x11704244, teleprompter(79508), 'prim' activeAudioFormatAndOutputSampleRateControlSession=(null) activeAndDoesntActuallyPlayAudioFormatAndOutputSampleRateControlSession=(null) inputSampleRateAndBufferSizeControlSession=sid:0x11704244, teleprompter(79508), 'prim' 默认 11:23:07.564584+0800 audiomxd -CMSessionMgr- cmsSetDeviceSampleRateAndBufferSize: Client sid:0x11704244, teleprompter(79508), 'prim' setting sampleRate = 44100.000, bufferFrames = 0, bufferDuration = 0.020, scope = output device FormatID = mcpl for VirtualAudioDevice_Default 默认 11:23:10.433943+0800 runningboardd Attempting to rename power assertion 35415 for target app<com.meipaifeng.app(5A5C10F8-1846-46E9-AE25-AD2B9262A460)> to app<com.meipaifeng.app(5A5C10F8-1846-46E9-AE25-AD2B9262A460)>33-71428-426141:audiomxd(71428).2025.03.26_11:20:14:2014.MediaExperience.79508."com.meipaifeng.app"."sid:0x11704244, teleprompter(79508), 'prim'"."PlayAndRecord".isPlayingProcessAssertion 错误 11:23:14.111439+0800 kernel Sandbox: audiomxd(71428) deny(1) file-read-metadata /private/var/containers/Bundle/Application/EB405BE0-986F-4779-83EC-8797A9ECD802/teleprompter.app/teleprompter 默认 11:23:14.111784+0800 audiomxd -MX_SystemStatus- MX_SystemStatus_PublishRecordingClientsInfo: Creating ST attribution info object with ActiveEntity com.meipaifeng.app executablepath: /private/var/containers/Bundle/Application/EB405BE0-986F-4779-83EC-8797A9ECD802/teleprompter.app/teleprompter 默认 11:23:14.141025+0800 audiomxd -CMSessionMgr- cmsmGetAudioConfigurationsControlSessions: playingAudioFormatAndOutputSampleRateControlSession=sid:0x11704244, teleprompter(79508), 'prim' activeAudioFormatAndOutputSampleRateControlSession=(null) activeAndDoesntActuallyPlayAudioFormatAndOutputSampleRateControlSession=(null) inputSampleRateAndBufferSizeControlSession=sid:0x11704244, teleprompter(79508), 'prim' 默认 11:23:14.142250+0800 audiomxd -CMSessionMgr- cmsSetDeviceSampleRateAndBufferSize: Client sid:0x11704244, teleprompter(79508), 'prim' setting sampleRate = 44100.000, bufferFrames = 0, bufferDuration = 0.020, scope = output device FormatID = mcpl for VirtualAudioDevice_Default 默认 11:23:14.165247+0800 audiomxd -MX_SystemStatus- MX_SystemStatus_PublishRecordingClientsInfo_block_invoke: Publishing recording clients info to SystemStatus. RecordingClients = {( <STMediaStatusDomainMicrophoneRecordingAttribution: 0xd4b2a23a0> { activityAttribution = <STActivityAttribution: 0xd4b2a31c0> { attributedEntity = <STAttributedEntity: 0xd44b000c0> { executableIdentity = <STExecutableIdentity: 0xd44b020c0> { executablePath = /private/var/containers/Bundle/Application/EB405BE0-986F-4779-83EC-8797A9ECD802/teleprompter.app/teleprompter; isSystemExecutable = NO; }; websiteNonNil = NO; systemService = NO; }; UUID = 1E306CDA-50B0-4EC0-8F62-0CB2A3280292; }; maximumHistoryAccessed = 0.000000; } )} ; MutedRecordingClients = {( )} 默认 11:23:16.212018+0800 CommCenter App state[teleprompter (79508)] is moving from kInBackgroundRestricted to kInForegroundRestricted 默认 11:23:18.070054+0800 audiomxd -CMSessionMgr- CMSessionMgrHandleApplicationStateChange:16940 Client com.meipaifeng.app with session sid:0x11704243, teleprompter(79508), 'auxi' [0xd47607800] with pid '79508' is now ForegroundRunning. Background entitlement: YES ActiveLongFormVideoSession: NO IsLongFormVideoApp NO 错误 11:23:19.377026+0800 kernel Sandbox: teleprompter(79508) deny(1) mach-lookup com.apple.mobile.keybagd.UserManager.xpc 错误 11:23:19.381237+0800 kernel Sandbox: teleprompter(79508) deny(1) mach-lookup com.apple.mobile.usermanagerd.xpc