Unreal Engine 5 crash when i start the material editor

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2

Have you tried disabling that Steam plugin ( is it one? )?

3

I just did it but the problem persists

4

What’s your machine spec?

Did you compile the engine or use the launcher?

5

RTX 3070TI
i7-8700K
16GB

i use the launcher

6

I have very little idea, unfortunately. Have you tried a verify?