title: Crash of packaged game “Assertion failed: SchemaIt != SchemaEnd” Unreal Engine 5 Preview
body: <p>It only happens with the packaged game. In editor, the game is running without any issues.</p>
  <p>Please find the crash log for the same below,</p>
  <pre><code>[2022.03.12-07.46.58:755][  0]Message dialog closed, result: Ok, title: The UE5-Demo_Store Game has crashed and will close, text: Assertion failed: SchemaIt != SchemaEnd [File:D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\Serialization\UnversionedPropertySerialization.cpp] [Line: 669] 
  [2022.03.12-07.46.58:755][  0]LogThreadingWindows: Error: Runnable thread FAsyncLoadingThread crashed.
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: === Critical error: ===
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: 
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: Assertion failed: SchemaIt != SchemaEnd [File:D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\Serialization\UnversionedPropertySerialization.cpp] [Line: 669] 
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: 
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: 
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: 
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a9a71003 Demo_Store.exe!SerializeUnversionedProperties() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a9a706b3 Demo_Store.exe!UScriptStruct::SerializeItem() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a9be43b6 Demo_Store.exe!FStructProperty::SerializeItem() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a9a71068 Demo_Store.exe!SerializeUnversionedProperties() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a9a6ac98 Demo_Store.exe!UClass::SerializeDefaultObject() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7ade3ffd3 Demo_Store.exe!UBlueprintGeneratedClass::SerializeDefaultObject() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a82c9b92 Demo_Store.exe!UClass::SerializeDefaultObject() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a99717c3 Demo_Store.exe!FAsyncPackage2::EventDrivenSerializeExport() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a9978bf0 Demo_Store.exe!FAsyncPackage2::Event_ProcessExportBundle() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a997c823 Demo_Store.exe!FEventLoadNode2::Execute() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a9996526 Demo_Store.exe!FAsyncLoadEventQueue2::PopAndExecute() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a99b57e4 Demo_Store.exe!FAsyncLoadingThread2::Run() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a9891ceb Demo_Store.exe!FRunnableThreadWin::Run() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ff7a988abf0 Demo_Store.exe!FRunnableThreadWin::GuardedRun() []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ffb3b2254e0 KERNEL32.DLL!UnknownFunction []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: [Callstack] 0x00007ffb3c98485b ntdll.dll!UnknownFunction []
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: 
  [2022.03.12-07.46.58:755][  0]LogWindows: Error: Crash in runnable thread FAsyncLoadingThread
  [2022.03.12-07.46.58:763][  0]LogExit: Executing StaticShutdownAfterError
  [2022.03.12-07.46.58:763][  0]LogWindows: FPlatformMisc::RequestExit(1)
  [2022.03.12-07.46.58:763][  0]LogWindows: FPlatformMisc::RequestExitWithStatus(1, 3)
  [2022.03.12-07.46.58:763][  0]LogCore: Engine exit requested (reason: Win RequestExit)
  [2022.03.12-07.46.58:780][  0]Log file closed, 03/12/22 13:16:58
  </code></pre>