OK now I've always played Vanilla and everything was always working fine and after today's update, none of my savegames or autosaves will load. How do I fix this?
LoginId:a3a8788c4...blabla
Assertion failed: ISMComponent.PerInstanceSMCustomData.Num() >= UpdateCustomFloatData.Num() [File:D:\Perforce\P_Release-CU1-HF4\Engine\Plugins\Runtime\MassGameplay\Source\MassRepresentation\Private\MassVisualizationComponent.cpp] [Line: 543]
StarRuptureGameSteam_Win64_Shipping!FDebug::CheckVerifyFailedImpl2() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:728]
StarRuptureGameSteam_Win64_Shipping!UMassVisualizationComponent::HandleChangesWithExternalIDTracking() [D:\Perforce\P_Release-CU1-HF4\Engine\Plugins\Runtime\MassGameplay\Source\MassRepresentation\Private\MassVisualizationComponent.cpp:543]
StarRuptureGameSteam_Win64_Shipping!UMassVisualizationComponent::EndVisualChanges() [D:\Perforce\P_Release-CU1-HF4\Engine\Plugins\Runtime\MassGameplay\Source\MassRepresentation\Private\MassVisualizationComponent.cpp:651]
StarRuptureGameSteam_Win64_Shipping!TBaseUObjectMethodDelegateInstance<1,UMassSimulationSubsystem const ,void __cdecl(float),FDefaultDelegateUserPolicy,enum EMassProcessingPhase>::ExecuteIfSafe() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:689]
StarRuptureGameSteam_Win64_Shipping!TMulticastDelegate<void __cdecl(float),FDefaultDelegateUserPolicy>::Broadcast() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Core\Public\Delegates\DelegateSignatureImpl.inl:1080]
StarRuptureGameSteam_Win64_Shipping!FMassProcessingPhase::OnParallelExecutionDone() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\MassEntity\Private\MassProcessingPhaseManager.cpp:129]
StarRuptureGameSteam_Win64_Shipping!FMassProcessingPhase::ExecuteTick() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\MassEntity\Private\MassProcessingPhaseManager.cpp:105]
StarRuptureGameSteam_Win64_Shipping!FTickFunctionTask::DoTask() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:345]
StarRuptureGameSteam_Win64_Shipping!TGraphTask<FTickFunctionTask>::ExecuteTask() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Core\Public\Async\TaskGraphInterfaces.h:713]
StarRuptureGameSteam_Win64_Shipping!UE::Tasks::Private::FTaskBase::TryExecuteTask() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Core\Public\Tasks\TaskPrivate.h:530]
StarRuptureGameSteam_Win64_Shipping!FNamedTaskThread::ProcessTasksUntilIdle() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:678]
StarRuptureGameSteam_Win64_Shipping!FTaskGraphCompatibilityImplementation::ProcessUntilTasksComplete() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:1592]
StarRuptureGameSteam_Win64_Shipping!FTickTaskSequencer::ReleaseTickGroup() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:986]
StarRuptureGameSteam_Win64_Shipping!FTickTaskManager::RunTickGroup() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:2079]
StarRuptureGameSteam_Win64_Shipping!UWorld::Tick() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Engine\Private\LevelTick.cpp:1539]
StarRuptureGameSteam_Win64_Shipping!UGameEngine::Tick() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Engine\Private\GameEngine.cpp:1883]
StarRuptureGameSteam_Win64_Shipping!FEngineLoop::Tick() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5625]
StarRuptureGameSteam_Win64_Shipping!GuardedMain() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Launch\Private\Launch.cpp:187]
StarRuptureGameSteam_Win64_Shipping!GuardedMainWrapper() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:128]
StarRuptureGameSteam_Win64_Shipping!LaunchWindowsStartup() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:282]
StarRuptureGameSteam_Win64_Shipping!WinMain() [D:\Perforce\P_Release-CU1-HF4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:340]
StarRuptureGameSteam_Win64_Shipping!__scrt_common_main_seh() [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll