Bug Report

Type /ver NametagEdit and post the output.
NameTagEdit version 4.4.0
Authors: sgtcaze and Cory

What version of Bukkit/Spigot/PaperSpigot are you using? Type /ver
PaperSpigot 1.12.2 V. 1449

What plugins are you using? Type /plugins
Plugins (49): PlaceholderAPI, JoinMessagePlus, PlugMan, uShop, NametagEdit, SkinsRestorer, SuperTrails, PlayerHeads, LuckPerms, Skript, ClearLag, WorldBorder, WeatherRestrictions, Votifier, SilkSpawners, Multiverse-Core, MVdWPlaceholderAPI, FastAsyncWorldEdit, FeatherBoard, Vault, ProtocolSupport, MassiveCore, SignShop, ViaVersion, WorldEdit, Essentials, ProtocolLib, Citizens, AdvancedAchievements, CrazyAuctions, EssentialsChat, Lottery, UltimateKits, HolographicDisplays, WorldGuard, AAC, CitizensCMD, Factions, EssentialsGeoIP, EssentialsSpawn, CratesPlus, CustomTab, PremiumVanish, LiteBans, PvPLevels, CombatTagPlus, MyPet, Jobs, Sellchest

Please explain your issue. How do you trigger it?
Whenever I switch the user to a few different ranks, their prefix will default to the default user prefix, when the rank has the correct permission node.

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

I see you are using LuckPerms. You have to give the players the correct permission

/lp group groupname permission set nte.groupname true

If you have multiple groups and are using inheritance, you have to negate the permission from all the other groups

Please see the explanation here: #360