In configuration player list some players names doesn't show text but colored blocks instead.

For some players it does show the appropriate text but for some it shows weird blocks of color.

In the image you should note the names on the left only has One [1] name as text and the others show irregular blocks of color when the players involved have not done anything unusual to their names or accounts to intentionally cause this.

P.S. Not sure WHY it states the player feed is temp disabled or even what should normally be there, but I doubt it is relevant to this issue.