4.26 Constant Crashes Saving Structs

I’ve been trying to edit one of my structs that is core to my game (character stats), and I’ve been running into an issue now where I can’t even save the structs without crashing. I can no longer add any variables to the struct without the game crashing. This is completely impeding work on my year long project so far. I run version control so I can revert the files, but I need to make additions to the struct for further iterations and now I can’t. Below is the crash, and attached are the crash dumps.

Any help would be fantastic, as this is becoming a serious impediment to me continuing with my game.

Crash #1:

LoginId:3400674e47c02f006a27e1a2ac788fa1
EpicAccountId:509c22b053bd40d8b36aea5e039f43a6

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff

UE4Editor_CoreUObject!FField::GetOwnerUField() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Field.cpp:416]
UE4Editor_CoreUObject!FField::GetOwnerClass() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Field.cpp:380]
UE4Editor_Kismet!FBlueprintCompilationManagerImpl::FFixupBytecodeReferences::operator<<() [D:\Build++UE4\Sync\Engine\Source\Editor\Kismet\Private\BlueprintCompilationManager.cpp:2977]
UE4Editor_CoreUObject!FPropertyProxyArchive::operator<<() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\PropertyProxyArchive.h:46]
UE4Editor_CoreUObject!UStruct::SerializeExpr() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\ScriptSerialization.h:202]
UE4Editor_CoreUObject!UStruct::SerializeExpr() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\ScriptSerialization.h:293]
UE4Editor_CoreUObject!UStruct::SerializeExpr() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:2145]
UE4Editor_CoreUObject!UStruct::Serialize() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:1944]
UE4Editor_CoreUObject!UFunction::Serialize() [D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:5601]
UE4Editor_Kismet!FBlueprintCompilationManagerImpl::FlushCompilationQueueImpl() [D:\Build++UE4\Sync\Engine\Source\Editor\Kismet\Private\BlueprintCompilationManager.cpp:1524]
UE4Editor_Kismet!FBlueprintCompilationManagerImpl::CompileSynchronouslyImpl() [D:\Build++UE4\Sync\Engine\Source\Editor\Kismet\Private\BlueprintCompilationManager.cpp:277]
UE4Editor_Kismet!FBlueprintCompilationManager::CompileSynchronously() [D:\Build++UE4\Sync\Engine\Source\Editor\Kismet\Private\BlueprintCompilationManager.cpp:3090]
UE4Editor_UnrealEd!FBlueprintEditorUtils::MarkBlueprintAsStructurallyModified() [D:\Build++UE4\Sync\Engine\Source\Editor\UnrealEd\Private\Kismet2\BlueprintEditorUtils.cpp:2074]
UE4Editor_KismetCompiler!FUserDefinedStructureCompilerUtils::CompileStruct() [D:\Build++UE4\Sync\Engine\Source\Editor\KismetCompiler\Private\UserDefinedStructureCompilerUtils.cpp:534]
UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileStructure() [D:\Build++UE4\Sync\Engine\Source\Editor\KismetCompiler\Private\KismetCompilerModule.cpp:86]
UE4Editor_UnrealEd!FStructureEditorUtils::CompileStructure() [D:\Build++UE4\Sync\Engine\Source\Editor\UnrealEd\Private\Kismet2\StructureEditorUtils.cpp:544]
UE4Editor_UnrealEd!FStructureEditorUtils::AddVariable() [D:\Build++UE4\Sync\Engine\Source\Editor\UnrealEd\Private\Kismet2\StructureEditorUtils.cpp:317]
UE4Editor_Kismet!FUserDefinedStructureLayout::OnAddNewField() [D:\Build++UE4\Sync\Engine\Source\Editor\Kismet\Private\UserDefinedStructureEditor.cpp:465]
UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FUserDefinedStructureLayout,0,FReply __cdecl(void),FDefaultDelegateUserPolicy>::Execute() [D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:290]
UE4Editor_Slate!SButton::ExecuteOnClick() [D:\Build++UE4\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Input\SButton.cpp:385]
UE4Editor_Slate!SButton::OnMouseButtonUp() [D:\Build++UE4\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Input\SButton.cpp:304]
UE4Editor_Slate!FEventRouter::Route >() [D:\Build++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:378]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [D:\Build++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:4815]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [D:\Build++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5356]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [D:\Build++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5321]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [D:\Build++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2178]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [D:\Build++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2642]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [D:\Build++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:1046]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [D:\Build++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:878]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [D:\Build++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsPlatformApplicationMisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4748]
UE4Editor!GuardedMain() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:169]
UE4Editor!GuardedMainWrapper() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137]
UE4Editor!WinMain() [D:\Build++UE4\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:268]
UE4Editor!__scrt_common_main_seh() [d:\agent_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll