Code that worked in 4.22.3 throws an error in 4.24.3

Error occurs in this part of UE4 (4.24.3).
C:\Program Files\Epic Games\UE_4.24\Engine\Source\Runtime\Core\Public\Templates\SharedPointerInternals.h

** UE4Editor.exe によってブレークポイントが発生しました -> UE4Editor.exe caused a breakpoint (transrated from Japanese)

crash log:

[2020.03.04-06.51.56:087][666]LogOutputDevice: Warning:

Script Stack (0 frames):

Assertion failed: GetFName() == NAME_None [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/UObjectBase.cpp] [Line: 136]

I don’t customed UE4 runtime code.
Sorry, I can’t show the program I’m editing. Because the rights belong to another company.

It worked in 4.22.3 without errors or warnings, so I guess the change of newer version(~4.24.3) was the cause.
Please let me know if anyone knows a change that might be relevant…