On the 04-05-22 I Did a Windows 11 update. The following day after the evening update, I couldn’t open up ANY of my UE4.27 4.26 OR 4.25 projects. Each and everyone of them would crash. They would have different crash reports.
I’ve just reinstalled 4.27 and this is the crash report after the latest Windows 11 update 17-05-22:
LoginId:a3ee31f34bcc0800e04704b94f85d744
EpicAccountId:c0fa9151a10e494284bdc4878721cb64
Assertion failed: CookedMesh != 0 [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Engine/Private/PhysicsEngine/PhysXSupport.cpp] [Line: 563]
UE4Editor_Core!AssertFailedImplV() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:104]
UE4Editor_Core!FDebug::CheckVerifyFailedImpl() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:461]
UE4Editor_Engine!FPhysXCookingDataReader::ReadConvexMesh() [D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\PhysicsEngine\PhysXSupport.cpp:563]
UE4Editor_Engine!FPhysXCookingDataReader::FPhysXCookingDataReader() [D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\PhysicsEngine\PhysXSupport.cpp:511]
UE4Editor_Engine!UBodySetup::CreatePhysicsMeshes() [D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\PhysicsEngine\BodySetup.cpp:431]
UE4Editor_Engine!UStaticMesh::CreateNavCollision() [D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\StaticMesh.cpp:6053]
UE4Editor_Engine!UStaticMesh::PostLoad() [D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\StaticMesh.cpp:5303]
UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp:1092]
UE4Editor_Engine!UBodySetup::PostLoad() [D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\PhysicsEngine\BodySetup.cpp:1199]
UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp:1092]
UE4Editor_CoreUObject!EndLoad() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1639]
UE4Editor_CoreUObject!<lambda_fc6dac93f63b3d981a3bc8e7f817eeef>::operator()() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1268]
UE4Editor_CoreUObject!LoadPackageInternal() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1374]
UE4Editor_CoreUObject!LoadPackage() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1469]
UE4Editor_CoreUObject!ResolveName() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:791]
UE4Editor_CoreUObject!StaticLoadObjectInternal() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:853]
UE4Editor_CoreUObject!StaticLoadObject() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:928]
UE4Editor_ComponentVisualizers!ConstructorHelpersInternal::FindOrLoadObject() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\ConstructorHelpers.h:36]
UE4Editor_ComponentVisualizers!AManipulator::AManipulator() [D:\Build++UE4\Sync\Engine\Source\Editor\ComponentVisualizers\Private\Manipulator.cpp:12]
UE4Editor_CoreUObject!UClass::CreateDefaultObject() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:3791]
UE4Editor_CoreUObject!UObjectLoadAllCompiledInDefaultProperties() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectBase.cpp:911]
UE4Editor_CoreUObject!ProcessNewlyLoadedUObjects() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectBase.cpp:1003]
UE4Editor_CoreUObject!TBaseStaticDelegateInstance<void __cdecl(FName,bool),FDefaultDelegateUserPolicy>::ExecuteIfSafe() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:731]
UE4Editor_Core!TMulticastDelegate<void __cdecl(FName,bool),FDefaultDelegateUserPolicy>::Broadcast() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateSignatureImpl.inl:955]
UE4Editor_Core!FModuleManager::LoadModuleWithFailureReason() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Modules\ModuleManager.cpp:519]
UE4Editor_Core!FModuleManager::LoadModule() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Modules\ModuleManager.cpp:353]
UE4Editor_UMG!FUMGModule::StartupModule() [D:\Build++UE4\Sync\Engine\Source\Runtime\UMG\Private\UMGModule.cpp:38]
UE4Editor_Core!FModuleManager::LoadModuleWithFailureReason() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Modules\ModuleManager.cpp:538]
UE4Editor_Core!FModuleManager::LoadModule() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Private\Modules\ModuleManager.cpp:353]
UE4Editor!FEngineLoop::LoadStartupCoreModules() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:3801]
UE4Editor!FEngineLoop::PreInitPostStartupScreen() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:3139]
UE4Editor!GuardedMain() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:132]
UE4Editor!GuardedMainWrapper() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137]
UE4Editor!LaunchWindowsStartup() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:273]
UE4Editor!WinMain() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:320]
UE4Editor!__scrt_common_main_seh() [d:\agent_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll