When the server is reloaded with my plugin, everyone's flight is disabled. Part of my plugin is cancelling their fall damage event from the flight being disabled. But if the plugin is reloaded before the player falls, the HashMaps that stored the player names has been erased. So, when the server reloads, I'm wanting the server to wait for the players to either get their fall damage canceled, or to be on the ground before the server completely disables the plugin, so players don't take fall damage. Thanks for the help!