Unreal Engine 5.2 crashes always on startup after deleting some assets

[Fatima_Hut]

Hi, I’m almost done with my project so I tried to clean it up by filtering out the “unused assets”, so after deleting some assets, Unreal Engine crashed and I can’t open it anymore even with different projects.

Crash Report:
LoginId:0103265c41427b17a52547b658002fca
EpicAccountId:9f32d459a028433b8a0584384460cbe9

Assertion failed: BoundingBoxCornerMesh != nullptr [File:D:\build++UE5\Sync\Engine\Source\Editor\ViewportInteraction\Gizmo\VIStretchGizmoHandle.cpp] [Line: 24]

UnrealEditor_ViewportInteraction
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

Please any one can help me.

[Leomerya12]

Hello,

How did you delete the objects? Through Unreal or directly through Windows/Apple?

If you deleted folders in Unreal, through Unreal, did it give you any warnings? (It SHOULD have.)

PS: You don’t have to clean up your project, assuming you intend to package it. Unreal abandons unused assets.

[Fatima_Hut]

Thanks for response I deleted from Unreal and it showed me a warning but i continued deleting
I am new with Unreal It is my first project. and I can’t open Unreal any more.

[Leomerya12]

I would start over.

Also, make sure you back up your project anytime you delete.

[Fatima_Hut]

I have a Back up but Unreal doesn`t open any more even with new project or any other project

[Leomerya12]

I would suggest reinstalling Unreal.

[Fatima_Hut]

finally I found the reason of the problem. I deleted some assets from the Engine folder in my project which is wrong thing to do.
I solved it by doing Verify to the program from Epic Game.