Virtual Texture error project

Development Getting Started & Setup
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1

When I turn on “Virtual Texture” I can no longer run the project. Mistake:
Assertion failed: CompressedMip.Num() == 1 [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\VT\VirtualTextureDataBuilder.cpp] [Line: 764]

UnrealEditor_Engine
UnrealEditor_Engine
How to solve the problem?

2

So I can’t run City Sample Vehicles

3

Help pls