Bug Report

Type /ver NametagEdit and post the output.
4.3.0

What version of Bukkit/Spigot/PaperSpigot are you using? Type /ver
paperspigot 1.13.2

What plugins are you using? Type /plugins
lots

Please explain your issue. How do you trigger it?
When /nte group list is used there is a second colour code that is registered and shown, when you see the tag above a players/staffs head the second colour code isnt noticed.

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

Is your aqua and lime green bold? If so:

&b&lOperator &a&l

This is 17 characters and looks like it may be cutting you off.