Minecraft Version: 1.16.5

Forge Version: 36.0.43

Mod Version: 2.3.0 (Seems to be present all the way up to 2.4.4)

Single Player or Server: Single Player

With "remove_glowing_effect_from_potions = true" (ie, default settings) potions cannot be inserted into Cyclic's Pharos Beacon by any means, even pipes. Removing the enchantment glow from potions seems to cause them to be invalidated as "potions" by certain potion-checking methods.

Setting this config to false restores intended functionality to affected blocks.

(I'm super late to the party but this was resolved a long time ago, closing the issue.)