Minecraft - Everyone glows when they move

After a long time of trying to find whatever was causing the problem, I finally decided to put all of my plugins into a separate folder where they wouldn't be run by the server. (Moving them out of the plugins folder and into plugins/unused/)

After restating the server (so there were no plugins running) I used PowerNBT to stop all of the online players individually from glowing

Then, I put all of the plugins back into the main plugins folder

After a second restart with all the plugins running this time, all of the players had stopped glowing, and moving etc would not cause anyone to begin glowing again