Describe the bug
It's a weird issue.
For EffectID:
in Play.Server.ENTITY_EFFECT I can't use getEffectTypes
and in Play.Server.REMOVE_ENTITY_EFFECT I can't use getBytes.

Expected behavior
I should capable to use getEffectTypes or getBytes indifferently.

Version Info
[Server thread/INFO]: [ProtocolLib] Loading ProtocolLib v4.6.1-SNAPSHOT-b498

The packets are structured differently; entity effect has a bunch of bytes and ints, remove entity effect has the effect type. PL just shows you what's in NMS