[BUG] CommunicationCalling crashes on hangup

Start with SessionManager.cs:226 and ActiveSessionPortraitPageViewModel.cs:52, following the hangup path into ACSCallAgent.g.cs:81. The report cannot reproduce the crash and provides no test or device logs, so first investigate the recorded check_status failure and establish a reliable hangup scenario. Done means ending a call no longer crashes under the affected conditions.

@tompi commented on Mon Feb 07 2022

Describe the bug
Experienced 3 crashes on 2 different iphones yesterday, unfortunately not "our" phones, so cant provide device logs.

Exception or Stack Trace

check_status
SIGABRT: Failed (1). Unknown error. RequestCorrelationVector: . ResponseCorrelationVector:

Main thread
LAST EXCEPTION BACKTRACE
CoreFoundation
__exceptionPreprocess
libobjc.A.dylib
objc_exception_throw
CoreFoundation
+[NSException raise:format:]
AzureCommunicationCalling
check_status
TCPRLink.iOS
wrapper_managed_to_native_ApiDefinitions_Messaging_objc_msgSend_intptr_intptr_0
TCPRLink.iOS
ACSCallAgent.g.cs:81
TCPRLink.iOS
TCPRLink_iOS_ACS_VideoCallManager_Hangup <unknown>:1
TCPRLink.iOS
SessionManager.cs:226
TCPRLink.iOS
AsyncMethodBuilder.cs:316
TCPRLink.iOS
TCPRLink_Services_SessionManager_StopSession
TCPRLink.iOS
ActiveSessionPortraitPageViewModel.cs:52
TCPRLink.iOS
AsyncMethodBuilder.cs:316
TCPRLink.iOS
TCPRLink_Pages_DuringSession_ActiveSession_ActiveSessionPortraitPageViewModel_EndSession
TCPRLink.iOS
AsyncAwaitBestPractices_MVVM_AsyncCommand__c__DisplayClass2_0__ConvertExecuteb__0_object <unknown>:1
TCPRLink.iOS
AsyncAwaitBestPractices_MVVM_BaseAsyncCommand_2_TExecute_REF_TCanExecute_REF_ExecuteAsync_TExecute_REF <unknown>:1
TCPRLink.iOS
AsyncAwaitBestPractices_MVVM_BaseAsyncCommand_2_TExecute_REF_TCanExecute_REF_System_Windows_Input_ICommand_Execute_object <unknown>:1
TCPRLink.iOS
Xamarin_Forms_ButtonElement_ElementClicked_Xamarin_Forms_VisualElement_Xamarin_Forms_Internals_IButtonElement (D:\a\1\s\Xamarin.Forms.Core\ButtonElement.cs:60)
TCPRLink.iOS
Xamarin_Forms_Button_SendClicked (D:\a\1\s\Xamarin.Forms.Core\Button.cs:173)
TCPRLink.iOS
Xamarin_Forms_Platform_iOS_ButtonElementManager_OnButtonTouchUpInside_Xamarin_Forms_IButtonController (D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ButtonElementManager.cs:86)
TCPRLink.iOS
Xamarin_Forms_Platform_iOS_ButtonRenderer_OnButtonTouchUpInside_object_System_EventArgs (D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\ButtonRenderer.cs:189)
TCPRLink.iOS
UIControl.cs:39
TCPRLink.iOS
wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr
TCPRLink.iOS
mono_jit_runtime_invoke mini-runtime.c:3190
TCPRLink.iOS
mono_runtime_invoke_checked object.c:3052
TCPRLink.iOS
mono_runtime_invoke object.c:3107
TCPRLink.iOS
native_to_managed_trampoline_18(objc_object*, objc_selector*, _MonoMethod**, unsigned int) registrar.m:960
TCPRLink.iOS
-[UIKit_UIControlEventProxy BridgeSelector] registrar.m:9877
UIKitCore
-[UIApplication sendAction:to:from:forEvent:]
TCPRLink.iOS
wrapper_managed_to_native_UIKit_UIApplication_UIApplicationMain_int_string___intptr_intptr
TCPRLink.iOS
UIApplication.cs:73
TCPRLink.iOS
TCPRLink_iOS_Application_Main_string__ <unknown>:1
TCPRLink.iOS
wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr
TCPRLink.iOS
mono_jit_runtime_invoke mini-runtime.c:3190
TCPRLink.iOS
mono_runtime_invoke_checked object.c:3052
TCPRLink.iOS
mono_runtime_exec_main_checked object.c:0
TCPRLink.iOS
mono_jit_exec driver.c:1383
TCPRLink.iOS
xamarin_main monotouch-main.m:497
TCPRLink.iOS
main main.m:252
0x0000000105291aa4

To Reproduce
Not able to reproduce

Setup (please complete the following information):

• OS: IOS 15.2.1 and 15.3
• Version of the Library used: 2.0.0-beta.1 (We are using the recording feature which is NOT in 2.0.0...)

I know this is not the best quality bug report, so feel free to close it at your discretion, just felt I should share in case you didnt know about this...