Players vanished from the tab on logging-in

[Redstone-ray]

I have experienced a very weird issue that causes a player to not show in the tablist after they logged in. The tablist freezes for the player(including the ping and tps) and they completely vanish from other player's tablist.

The player is observed to show up correctly when using the /list command, or viewing the player list in the server list.

There is no error in the console when this happens, and reloading the plugin fixes the issue, only if the reload command is run by the player being vanished from the tab.

I do not have any additional plugins that conflict with ATO. And this issue occurs on the latest dev build.

Attached is the tablist configuration.
default.txt

[Roshanxy]

I have a similar problem

I go into spectator mode, edit the tablist, reload via console and receive time outs after without any errors anywhere. If I get kicked for this timeout, my player stays online etc it's super strange.

plus if I go into spectator mode, my tab looks like this but not for other players. If I reload it via console, it'll look fine to me but I'll get the timeouts constantly and if I change my gamemode via console back to creative and then join, it works fine.
If I don't change my gamemode, I will get these time outs forever. If I change it back to creative via the console, issue solved. If I don't reload but go to spectator, it works fine but looks weird like the image^