Bug Report

Type /ver NametagEdit and post the output.
NametagEdit version 4.5.8
Authors: sgtcaze, Cory, Lorenzo0111 and Aurelien30000

What version of Bukkit/Spigot/PaperSpigot are you using? Type /ver
This server is running CraftBukkit version 3498-Spigot-b081915-10ba1be (MC: 1.18.2) (Implementing API version 1.18.2-R0.1-SNAPSHOT)

What plugins are you using? Type /plugins
Plugins (40): GMusic, Infiniteannouncements, Gender, ClearLag, Minepacks, sleep-most, ViaVersion, GHolo, Curses, floodgate, SimpleCrops, ViaBackwards, ViaRewind, LuckPerms, AnimatedScoreboard, ViaVersionStatus, ProtocolLib, LibsDisguises, SkinsRestorer, Geyser-Spigot, Vault, PrisonRanksX, MyCommand, LPC, WorldEdit, Essentials, LoginSecurity, NametagEdit, WorldGuard, Multiverse-Core, eGlow, DiscordSRV, EssentialsChat, GSit, ProtectionStones, PlayerParticles, QualityArmory, MarriageMaster, MoneyFromMobs, ServerlistMOTD

Please explain your issue. How do you trigger it?
The prefix is showing in the TabList but its not showing in the players NameTag

Are there any errors in the console? Please use: https://pastebin.com
No errors

This is not a direct issue from NTE. It might be an incompatibility though.
Please try without extra plugins and make sure you're using native minecraft server version (1.18.2) on your clients. Via plugins may cause small issues rewriting packets/data.

Probably because AnimatedScoreboard is interfeering with NTE try removing it and see if it works