I am setting a custom scoreboard to the player. When that's done, it's not possible to set the scoreboard back to the vanilla scoreboard using player.setScoreboard(Bukkit.getScoreboardManager().getMainScoreboard()).

The client gets disconnected from the Spigot server, back to the Bungeecord lobby with this error in the Bungeecord console: https://gyazo.com/3dff04d3fac2fb96aca3d9b36fb8a58f

Seems like the server is trying to re-send the objectives to the client. I am expecting the client to just re-use the scoreboard.