What happened?

Player heads disappear when shader is enabled.
Minecraft is 1.21.4.

Minecraft Version

Other

Which shader mod are you using?

Iris

Shader mod version

1.8.8

Shader settings

There are no config files in shaderpacks folder.

Relevant log output

Turning off "Use Separate Entity Draws" seems to fix it in Photon, tho Hysteria doesn't have that option.