Weird POM at height 50 underwater

[joshua-igor]

Describe the bug

When you go underwater, starting from height 50, any resource pack that has Parallax Occlusion Mapping (POM) glitches out and show a weird black texture when you approach any block.
The screenshot below shows exactly the transition between the glitched sand and the normal sand.

Other blocks are also affected:

I have tried using both Pixlli and rotrBLOCKS. Disabling POM on the shaderpack settings fixes the issue.

• What GPU vendor you are using: NVIDIA RTX 3070
• What operating system you are using: Windows 11
• What minecraft version you are playing: 1.21
• If you are using a special client for minecraft: n/a
• What shader loading mod you are using: Iris 1.7.3
• What version of the shader you are using: Bliss Commit #482
• If you are using any, what additional mods you are using besides the ones required to use the shader: Distant Horizons 2.1.2 and Tectonic/Terralith

[X0nk]

hm i will try to reproduce this