This crash is coming from a custom debug log implementation of third party library which does not cover the unicode characters. If you are experiencing this crash, please check your code for such library usage.

0x000000014140CE13 (Unity) scripting_icall_string_to_utf8
0x0000000141406C2C (Unity) ICallString::ToUTF8
0x00000001418D08B1 (Unity) UnityLogWriter_CUSTOM_WriteStringToUnityLog
0x00000000363200CE (Mono JIT Code) (wrapper managed-to-native) UnityEngine.UnityLogWriter:WriteStringToUnityLog (string)
0x000000003741FEAB (Mono JIT Code) [C:\buildslave\unity\build\artifacts\generated\common\runtime\UtilsBindings.gen.cs:168] UnityEngine.UnityLogWriter:Write (char)
0x000000003741FD3A (Mono JIT Code) [/Users/builduser/buildslave/mono/build/mcs/class/referencesource/mscorlib/system/io/textwriter.cs:230] System.IO.TextWriter:Write (char[],int,int)
0x000000003741F938 (Mono JIT Code) [/Users/builduser/buildslave/mono/build/mcs/class/referencesource/mscorlib/system/io/textwriter.cs:490] System.IO.TextWriter:WriteLine (string)
0x0000000036333A0A (Mono JIT Code) [/Users/builduser/buildslave/mono/build/mcs/class/referencesource/mscorlib/system/io/textwriter.cs:537] System.IO.TextWriter:WriteLine (string,object,object,object)
0x00000000363338E2 (Mono JIT Code) [/Users/builduser/buildslave/mono/build/mcs/class/corlib/System/Console.cs:469] System.Console:WriteLine (string,object,object,object)
0x0000000039CE5EF1 (Mono JIT Code) [C:\Users\admin\Documents\virtual_assistant\Assets\Packages\Watson\Scripts\Logging\Logger.cs:218] IBM.Watson.DeveloperCloud.Logging.Log:Debug (string,string,object[])
0x0000000039D4ECB3 (Mono JIT Code) [C:\Users\admin\Documents\virtual_assistant\Assets\Scripts\AudioCreator\TextToSpeechAudioCreator.cs:105] TextToSpeechAudioCreator/<ProcessData>c__Iterator0:MoveNext ()
0x0000000039CDDD71 (Mono JIT Code) [C:\Users\admin\Documents\virtual_assistant\Assets\Packages\Watson\Scripts\Utilities\Runnable.cs:128] IBM.Watson.DeveloperCloud.Utilities.Runnable/Routine:MoveNext ()
0x0000000039CBC07D (Mono JIT Code) [C:\buildslave\unity\build\Runtime\Export\Coroutines.cs:17] UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr)
0x0000000039CBC25C (Mono JIT Code) (wrapper runtime-invoke) <Module>:runtime_invoke_void_object_intptr (object,intptr,intptr,intptr)
0x00007FF8FD0C444F (mono-2.0-bdwgc) [c:\buildslave\mono\build\mono\mini\mini-runtime.c:2579] mono_jit_runtime_invoke
0x00007FF8FD2C49E7 (mono-2.0-bdwgc) [c:\buildslave\mono\build\mono\metadata\object.c:2813] do_runtime_invoke
0x00007FF8FD2CCFBF (mono-2.0-bdwgc) [c:\buildslave\mono\build\mono\metadata\object.c:2865] mono_runtime_invoke
0x000000014140BF25 (Unity) scripting_method_invoke
0x0000000141403FE1 (Unity) ScriptingInvocation::Invoke
0x000000014115AC0C (Unity) Coroutine::InvokeMoveNext
0x000000014116BE9C (Unity) Coroutine::Run
0x000000014116C41C (Unity) MonoBehaviour::TryCreateAndRunCoroutine
0x0000000141173ABF (Unity) MonoBehaviour::StartCoroutineManaged2
0x000000014189E68F (Unity) MonoBehaviour_CUSTOM_StartCoroutine_Auto_Internal
0x0000000039CBBDA7 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.MonoBehaviour:StartCoroutine_Auto_Internal (UnityEngine.MonoBehaviour,System.Collections.IEnumerator)
0x0000000039CBBC03 (Mono JIT Code) [C:\buildslave\unity\build\artifacts\generated\common\runtime\MonoBehaviourBindings.gen.cs:62] UnityEngine.MonoBehaviour:StartCoroutine (System.Collections.IEnumerator)
0x0000000039CDC25A (Mono JIT Code) [C:\Users\admin\Documents\virtual_assistant\Assets\Packages\Watson\Scripts\Utilities\Runnable.cs:114] IBM.Watson.DeveloperCloud.Utilities.Runnable/Routine:.ctor (System.Collections.IEnumerator)
0x0000000039CDBF92 (Mono JIT Code) [C:\Users\admin\Documents\virtual_assistant\Assets\Packages\Watson\Scripts\Utilities\Runnable.cs:47] IBM.Watson.DeveloperCloud.Utilities.Runnable:Run (System.Collections.IEnumerator)
0x0000000039D0C198 (Mono JIT Code) [C:\Users\admin\Documents\virtual_assistant\Assets\Scripts\AudioCreator\TextToSpeechAudioCreator.cs:68] TextToSpeechAudioCreator:Start ()
0x00000000147634F4 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
0x00007FF8FD0C444F (mono-2.0-bdwgc) [c:\buildslave\mono\build\mono\mini\mini-runtime.c:2579] mono_jit_runtime_invoke
0x00007FF8FD2C49E7 (mono-2.0-bdwgc) [c:\buildslave\mono\build\mono\metadata\object.c:2813] do_runtime_invoke
0x00007FF8FD2CCFBF (mono-2.0-bdwgc) [c:\buildslave\mono\build\mono\metadata\object.c:2865] mono_runtime_invoke
0x000000014140BF25 (Unity) scripting_method_invoke
0x0000000141403FE1 (Unity) ScriptingInvocation::Invoke
0x000000014116E9B1 (Unity) MonoBehaviour::InvokeMethodOrCoroutineChecked
0x000000014116EB14 (Unity) MonoBehaviour::InvokeMethodOrCoroutineChecked
0x00000001411732B2 (Unity) MonoBehaviour::Start
0x0000000141173BC9 (Unity) MonoBehaviour::DelayedStartCall
0x0000000140DD649A (Unity) DelayedCallManager::Update
0x00000001410B754C (Unity) `InitPlayerLoopCallbacks'::`39'::UpdateScriptRunDelayedDynamicFrameRateRegistrator::Forward
0x00000001410B5391 (Unity) PlayerLoop
0x00000001401091FE (Unity) Application::UpdateScene
0x000000014012CFF7 (Unity) Application::EnterPlayMode
0x000000014012E127 (Unity) Application::SetIsPlaying
0x0000000140131992 (Unity) Application::TickTimer
0x0000000141A8A84D (Unity) MainMessageLoop
0x0000000141A8C15E (Unity) WinMain
0x0000000141CEF53C (Unity) __tmainCRTStartup
0x00007FF941691FE4 (KERNEL32) BaseThreadInitThunk
0x00007FF941CBEF91 (ntdll) RtlUserThreadStart