Hi all when I try to delete fbx object in my blueprint its crash all time and show this msg what can i do ?

Development Programming & Scripting C++
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Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/Obj.cpp] [Line: 209] Renaming an object (TankTrack /Game/Tank/Tank_BP.Tank_BP_C:TankTrack_R_GEN_VARIABLE) on top of an existing object (TankTrack /Game/Tank/Tank_BP.Tank_BP_C:Left Track_REMOVED_2B6129CD4EEF4619BD9376B692EF5666) is not allowed

UE4Editor_CoreUObject
UE4Editor_Engine
UE4Editor_Kismet
UE4Editor_Kismet
UE4Editor_Kismet
UE4Editor_Kismet
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
user32
user32
UE4Editor_ApplicationCore
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll

2

Thank you for reaching out for assistance. I have found a very informative forum post that is quite similar to your situation.

Reference Post

I do not wish to take credit for the user’s eloquent response so feel free to read their solution in its entirety.