(1.21.1) Rendering of spell cooldowns from Iron's Spells 'N Spellbooks do not appear on the main HUD.

[Luviam]

For starters, I'm amazed this hasn't been reported here, and I'm aware this exact issue has appeared before but was fixed on 1.20.1 Forge. However that is not the case on 1.21.1 NeoForge.

Here's how it looks with ImmediatelyFast, notice that the cooldown overlay does not appear on the normal HUD in the bottom left

And now here's the same thing but with ImmediatelyFast disabled. Notice how the cooldown overlay is properly displayed in the bottom left.

Debug Log: https://mclo.gs/OWOpFXR

[RaphiMC]

Provide steps to get to this point / open the overlay

[Luviam]

Provide steps to get to this point / open the overlay

1. Boot Minecraft with Iron's Spells N' Spellbooks and ImmediatelyFast on NeoForge 1.21.1

2. Load into a world and equip a spell book that has spells.

3. Cast a spell and observe the bottom left spell overlay. (Default key to cast a spell is R. You can hold R to open the overlay, though its only purpose here in this bug report to display how it works properly, yet the seperate UI element in the bottom left does not)