BossBar + BungeeCord = Flooding clients screen with unremovable BossBars

When a player changes servers (using BungeeCord).
The previous BossBar message from the previous server remains on their client and becomes unremovable.

This becomes bad, because BossBar's now stack ontop of each other, so If I connect to a couple of networks within my server, the clients screen is flooded with Boss Bar messages that are not removable.

I also cannot use onPlayerQuit(PlayerQuitEvent event) { event to remove the BossBar from the client because client is unable to receive packets in this event because they're disconnected before event happens.

If there was a new BossBar function to remove all BossBar's from client's screen it could be run onPlayerJoinEvent. Though I'm unsure such a function is possible.