I have strange line all over my meshes

I want to erase those blue lines.
please help me

I would try these links, in this order.
They will at least get you started on your Journey, but I fear that we can’t tell when this is happening, or when it started (what you were doing before it happened).

if that doesn’t this may answer it Viewport Modes in Unreal Engine | Unreal Engine 5.1 Documentation

could also be collision from the look of it. theres a option to show collision in the show tab if i recall correctly (well in one of the tabs at the top right of the viewport).

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thank you