VertxLine.shader transparency in first pass not working?

[DoomT-AliW]

I'm not sure why, but the first pass that's supposed to make lines transparent when behind other geometries does not work in the line case. But the arc (sphere) does seem to work, I checked the shaders in both they're pretty much the same I'm not sure what the difference is.

I'm just doing a return fixed4(1,0,0,0.5); in the frag function of VertxLine.shader

You can see its solid. I tried ZTest Always and moving the passes around, and Queue=Transparent, didn't help

Any help is appreciated. Thanks

Using Unity 2023.2.16f1