Minecraft version
1.18.2 fabric 0.14.19
Mod version
1.6.2 ( latest)

Describe the bug
Losing dyed color(added by fancy dyes mod) on weapon when swinging.

To Reproduce
Steps to reproduce the behavior:

1. Dye a weapon using solid(edit: sometimes shimmer) dyes.
2. Swing it.

Can you please specify how exactly is this related to Better Combat?

Better combat added the swinging animation, and that issue happens during the animation.
This pic may explain: https://i.postimg.cc/KzkLZ4wQ/1.png

Can you please specify how exactly is this related to Better Combat?

It's an Iris issue, sorry for the inconvenience!