Certain block models become invisible during rendering

Some block models are invisible.

This issue was reproduced on Windows with an AMD Radeon RX 6750 GRE 12GB. It is currently unknown whether other GPUs are affected.

Steps to reproduce:

1. Open Minecraft Preview 26.50.26

2. Open the Creative inventory and view affected blocks such as Shelf Mushroom, Cobweb, and Snow

3. Open a structure block preview containing blocks such as Light Blue Concrete

Expected result:
All block models should be visible normally

Actual result:
Some block models are invisible, even though their textures and models are loaded correctly.

I investigated this issue using renderdoc. The affected draw calls contain the correct vertex data and textures. The Pixel Shader also samples the material texture and lightmap texture normally and writes a colour output to SV_Target, however, the affected pixels do not appear in the final render target. renderdoc shows that depth testing is enabled for these draw calls, so the fragments may be incorrectly discarded by the depth test.

this affects multiple rendering contexts, including inventory rendering and structure block previews