I'm not 100% sure how to describe it, but I linked a SS https://ibb.co/FXgkHLC. Why are NPC enemies (red and/or yellow) getting random buffs to the right of their nameplates? I've tried tinkering all checkboxes but nothing is working unless I completely disable nameplates buffs/debuffs. I don't want to do that as I like seeing it when pvping. Any idea what's going on?

Are you using ThreatPlates? If yes, then it's a compatibility issue that unfortunately has been around for months already :(

I am not using Threatplates. The only addons I have are: Bartender, BigDebuffs, Details, GladiusEx, MoveAnything, Omnibar and REFlex.

This issue appears with the default nameplates and addons like nplates, threatplates, plater nameplates.

Buffs that had been used and also their icons (without a timer) will appear on nameplates without any relation.

Sometimes it gets mirrored and another time its pretty much random.

As far as I know theres no correlation with the nameplate addons or any other of the mentioned addons.

I got the same problem without any other addons installed.