Culling issue with shaders

[SnowFlakeDif]

I'm on neo forge 1.21.1 and making mod pack for my friends. When I use photon shaders with iris and this mod the culling is broken. It happens with and without other culling mods enabled.

[MincraftEinstein]

Hi. Are you using the latest versions of all the related mods? e.g. iris, subtle effects, photon shaders, etc.