Demo crashing when opening

hello guys I still trying to resolve why I can’t package my game, right now i made a new project and i am exporting my blueprints one by one to see if i can find the issue, right now i don’t have the error of my last post but i have this new error when i try to open my recently package games
Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading2.cpp] [Line: 1700]
ObjectSerializationError: /Game/MisCosas/Blueprints/BP_MyFPSCharacter (0xD7BEF0D8524FF25D) /Game/MisCosas/Blueprints/BP_MyFPSCharacter (0xD7BEF0D8524FF25D) - BP_MyFPSCharacter_C /Game/MisCosas/Blueprints/BP_MyFPSCharacter.Default__BP_MyFPSCharacter_C: Bad export index 382/8.

0x00007ff6fab8e515 CSLocal-Win64-DebugGame.exe!FExportArchive::HandleBadExportIndex()
0x00007ff6fab757b9 CSLocal-Win64-DebugGame.exe!FExportArchive::operator<<()
0x00007ff6fab62160 CSLocal-Win64-DebugGame.exe!FArchiveUObject::SerializeObjectPtr()
0x00007ff6fae44845 CSLocal-Win64-DebugGame.exe!FObjectPtrProperty::SerializeItem()
0x00007ff6fadd3c97 CSLocal-Win64-DebugGame.exe!FArrayProperty::SerializeItem()
0x00007ff6fac03094 CSLocal-Win64-DebugGame.exe!SerializeUnversionedProperties()
0x00007ff6fac021ba CSLocal-Win64-DebugGame.exe!UStruct::SerializeTaggedProperties()
0x00007ff6fabf27ec CSLocal-Win64-DebugGame.exe!UClass::SerializeDefaultObject()
0x00007ff6ffb39593 CSLocal-Win64-DebugGame.exe!UBlueprintGeneratedClass::SerializeDefaultObject()
0x00007ff6fab833fd CSLocal-Win64-DebugGame.exe!FAsyncPackage2::EventDrivenSerializeExport()
0x00007ff6fab861b2 CSLocal-Win64-DebugGame.exe!FAsyncPackage2::Event_ProcessExportBundle()
0x00007ff6fab86e8d CSLocal-Win64-DebugGame.exe!FEventLoadNode2::Execute()
0x00007ff6fab8748b CSLocal-Win64-DebugGame.exe!FAsyncLoadEventQueue2::ExecuteSyncLoadEvents()
0x00007ff6faba1366 CSLocal-Win64-DebugGame.exe!FAsyncLoadingThread2::Run()
0x00007ff6fa81eab2 CSLocal-Win64-DebugGame.exe!FRunnableThreadWin::Run()
0x00007ff6fa812507 CSLocal-Win64-DebugGame.exe!FRunnableThreadWin::GuardedRun()
0x00007ffb9688257d KERNEL32.DLL!UnknownFunction

Crash in runnable thread FAsyncLoadingThread

i really don’t known why this happens, in the editor everything is working fine, but when i package that happen, i would really appreaciate the help guys

If somebody gets this error in the future you probably will need to delete the binaries and intermediate folder and build the project again.

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