Why Blender always shows edges that doesn't exist??

Question Modeling

It's those kind of strange edges that appears from time to time, and we can't delete it. I don't know if it's going to affect the textures or anything else. Blender is telling something and I can't understand the language. It's very annoying as it occurs a lot of the time.

Blend file

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  • spikeyxxx replied

    Already answered in Bad Geometry (Beginner) post.

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