It seems that armors from both the mods 'Paladins' and 'Archers' glitch when using 'Epic Fight Mod'.

Testing was done in the following environment:

Forge 47.2.20 (1.20.1)

Archers 1.0.7+
AzureLibArmor Neo 2.0.3
Cloth Config 11.1.118
Connectors (Sinytra) 1.0.0 beta 32
ConnectorExtras 1.9.2+
Epic Fight 20.6.4
Fabric API (Forgified) 0.91.0+1.10.8
Paladins 1.0.5+
Player-animation-lib-forge-1.0.2-rc1
Projectile_damage-forge-3.2.2+1.20.1
runes-fabric-0.9.11+1.20.1
spell_engine-0.12.5+1.20.1
spell_power-fabric-0.9.18+1.20.1
trinkets-3.7.1

Any armors used look like this:

Just another note that might be kinda irrelevant as compatibility with Forge is done by Sinytra: I tested it with just the connector and it worked, Epic Fight Mod is definitely the problem.

Epic Fight compatibility is out of scope for all of my projects.

I see, thanks for your answer, but would you care to share the reason of that being this way?

I am genuinely curious about the reasons behind the decision to not officially support intercompatibility. (Is it a time constraint, a technical constraint or something else entirely?)

Again, thanks for your time!