Are your nametags not displaying? Are things on fire? Please read below carefully before asking for support!
Chances are you misconfigured your Group Hierarchy. SortPriority and GroupOrder are NOT the same feature! Read up on proper configuration [here](Configuration.creole)
It is most likely that several plugins are manipulating the main scoreboard, and players are being added to several Scoreboard Teams. This is a well known Minecraft issue and not something we can fix, unfortunately.
Please send us the name, or check if it is incompatible [here](IncompatiblePlugins.md)
The nameplate (above your head) is limited to 48 characters total. 16 characters for the prefix, 16 for your name, and 16 for the suffix. It is NOT a bug that nametags longer than 16 characters are cut off. This is because of a limitation in the minecraft scoreboard code.
If you're using ViaVersion on 1.8.x and having issues with tags showing up in the tab list. Edit the file plugins/ViaVersion/config.yml
Change:
auto-team: true
To:
auto-team: false