Visual bug with mod armors

Minecraft version - 1.21.1
Modloader Neoforge - 21.1.185
version iris - 1.8.12
Version sodium - 0.6.13

Also the armor that I used to display the bug Re:Avaritia, but if I look for it I will probably find it in other mods.

When putting on mod armor it starts flying and moving around me. I haven't noticed anything like that with vanilla items. As I noticed it only happens with mod textures or whatever it's called. So far I've only noticed two mods have this interaction.

Also checked it may be a problem with a particular shader. Tried three. On the video shader BLISS, also checked on photon and Complementary Shaders - Reimagined and the bug was still there.

Mods shown in the video. Sodium, Iris and Re:Avaritia

So I figured it was iris because this thing is only there when the shader on iris is on.
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