rendering issues in-game
seems like the rendering is spotty with this shader, sometimes it works, sometimes it works but with no shadows, and most of the time it looks like this.

running on an AMD rx 6900xt with current drivers
S&box's internal shader might have some breaking changes recently. I will try to reproduce the issue when I got some free time.
Anyone else had luck with the recent builds? This still seems to be unresolved at the moment.
Okay, so I noticed that the weird shadow artifacts disappear when you use the "TransparentWithZWrite" Rendering Type in the Material Editor. However, when you use other models in the preview, the artifacting comes back.