Selection line is transparent.how to remove this?

Support Modeling
1

That’s very disturbing!!

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2719×587 13 KB

2

Need far more information as the image doesn’t give us much.

Care to share the blend or a full screen shot?

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21769×983 151 KB

thanks!this is full image.
i use blender2.8.selected object is transparent.
trasparent disable when i unchecked outline selected of viewport overlays