Missing shaded wireframe option in unity 2019.1.3f,shaded wireframe not showing(LWRP) unity 2019.1.3f

Hi, i am using unity 2019.1.3f (LWRP) now.

and i try to find the ‘shaded wireframe’ option but unity program give only 2 options without shaded wireframe.

Do anyone know how to figure out this problem?

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Same issue in 2019.2.6f1