Crash occurs when unmuting a user while Voice Chat and Network Replays are both active

 MachineId:E27447B24FAEFEC0FBE6AB864052AB52
EpicAccountId:f95440de7d6c476db8b0afba486d152d

Unknown exception - code 00000001 (first/second chance not available)

"Assertion failed: IsValid() [File:P:\Projects\Rebound\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h] [Line: 697] 
"

UE4Editor_Core!FDebug::AssertFailed() [p:\projects\rebound\engine\source\runtime\core\private\misc\outputdevice.cpp:354]
UE4Editor_Engine!FUniqueNetIdRepl::operator*() [p:\projects\rebound\engine\source\runtime\engine\classes\gameframework\onlinereplstructs.h:117]
UE4Editor_Engine!GetPlayerControllerFromNetId() [p:\projects\rebound\engine\source\runtime\engine\private\gamesession.cpp:34]
UE4Editor_Engine!FPlayerMuteList::ServerUnmutePlayer() [p:\projects\rebound\engine\source\runtime\engine\private\playermutelist.cpp:64]
UE4Editor_Engine!APlayerController::ServerUnmutePlayer_Implementation() [p:\projects\rebound\engine\source\runtime\engine\private\playercontroller.cpp:3045]
UE4Editor_Engine!APlayerController::execServerUnmutePlayer() [p:\projects\rebound\engine\source\runtime\engine\classes\gameframework\playercontroller.h:149]
UE4Editor_CoreUObject!UFunction::Invoke() [p:\projects\rebound\engine\source\runtime\coreuobject\private\uobject\class.cpp:4195]
UE4Editor_CoreUObject!UObject::ProcessEvent() [p:\projects\rebound\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1046]
UE4Editor_Engine!AActor::ProcessEvent() [p:\projects\rebound\engine\source\runtime\engine\private\actor.cpp:580]
UE4Editor_Engine!APlayerController::ServerUnmutePlayer() [p:\projects\rebound\engine\intermediate\build\win64\ue4editor\inc\engine\engine.generated.1.cpp:4186]
UE4Editor_OnlineSubsystemSteam!FOnlineVoiceSteam::UpdateMuteListForLocalTalker() [p:\projects\rebound\engine\source\runtime\online\onlinesubsystemsteam\private\voiceinterfacesteam.cpp:533]
UE4Editor_OnlineSubsystemSteam!FOnlineVoiceSteam::ProcessMuteChangeNotification() [p:\projects\rebound\engine\source\runtime\online\onlinesubsystemsteam\private\voiceinterfacesteam.cpp:500]
UE4Editor_OnlineSubsystemSteam!FOnlineVoiceSteam::RegisterRemoteTalker() [p:\projects\rebound\engine\source\runtime\online\onlinesubsystemsteam\private\voiceinterfacesteam.cpp:286]
UE4Editor_OnlineSubsystemSteam!FOnlineSessionSteam::RegisterVoice() [p:\projects\rebound\engine\source\runtime\online\onlinesubsystemsteam\private\onlinesessioninterfacesteam.cpp:1253]
UE4Editor_OnlineSubsystemSteam!FOnlineSessionSteam::RegisterPlayers() [p:\projects\rebound\engine\source\runtime\online\onlinesubsystemsteam\private\onlinesessioninterfacesteam.cpp:1294]
UE4Editor_OnlineSubsystemSteam!FOnlineSessionSteam::RegisterPlayer() [p:\projects\rebound\engine\source\runtime\online\onlinesubsystemsteam\private\onlinesessioninterfacesteam.cpp:1280]
UE4Editor_Engine!APlayerState::RegisterPlayerWithSession() [p:\projects\rebound\engine\source\runtime\engine\private\playerstate.cpp:264]
UE4Editor_Engine!AGameSession::RegisterPlayer() [p:\projects\rebound\engine\source\runtime\engine\private\gamesession.cpp:234]
UE4Editor_Engine!AGameMode::InitNewPlayer() [p:\projects\rebound\engine\source\runtime\engine\private\gamemode.cpp:1004]
UE4Editor_Engine!AGameMode::Login() [p:\projects\rebound\engine\source\runtime\engine\private\gamemode.cpp:1057]
UE4Editor_Rebound
UE4Editor_Engine!UWorld::SpawnPlayActor() [p:\projects\rebound\engine\source\runtime\engine\private\levelactor.cpp:665]
UE4Editor_Engine!UWorld::NotifyControlMessage() [p:\projects\rebound\engine\source\runtime\engine\private\world.cpp:3860]
UE4Editor_Engine!UControlChannel::ReceivedBunch() [p:\projects\rebound\engine\source\runtime\engine\private\datachannel.cpp:1201]
UE4Editor_Engine!UChannel::ReceivedSequencedBunch() [p:\projects\rebound\engine\source\runtime\engine\private\datachannel.cpp:270]
UE4Editor_Engine!UChannel::ReceivedNextBunch() [p:\projects\rebound\engine\source\runtime\engine\private\datachannel.cpp:614]
UE4Editor_Engine!UChannel::ReceivedRawBunch() [p:\projects\rebound\engine\source\runtime\engine\private\datachannel.cpp:354]
UE4Editor_Engine!UNetConnection::ReceivedPacket() [p:\projects\rebound\engine\source\runtime\engine\private\netconnection.cpp:1044]
UE4Editor_Engine!UNetConnection::ReceivedRawPacket() [p:\projects\rebound\engine\source\runtime\engine\private\netconnection.cpp:495]
UE4Editor_OnlineSubsystemUtils!UIpNetDriver::TickDispatch() [p:\projects\rebound\engine\source\runtime\online\onlinesubsystemutils\private\ipnetdriver.cpp:174]
UE4Editor_Engine!TBaseUObjectMethodDelegateInstance<0,UNetDriver,void __cdecl(float)>::ExecuteIfSafe() [p:\projects\rebound\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:772]
UE4Editor_Engine!TBaseMulticastDelegate<void,float>::Broadcast() [p:\projects\rebound\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:809]
UE4Editor_Engine!UWorld::Tick() [p:\projects\rebound\engine\source\runtime\engine\private\leveltick.cpp:1062]
UE4Editor_Engine!UGameEngine::Tick() [p:\projects\rebound\engine\source\runtime\engine\private\gameengine.cpp:923]
UE4Editor!FEngineLoop::Tick() [p:\projects\rebound\engine\source\runtime\launch\private\launchengineloop.cpp:2428]
UE4Editor!GuardedMain() [p:\projects\rebound\engine\source\runtime\launch\private\launch.cpp:142]
UE4Editor!GuardedMainWrapper() [p:\projects\rebound\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [p:\projects\rebound\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]