Hi. I am hosting a spigot minecraft server where some of the players can join normally and others can join to the server, they don't see any scenery (only sun), after while they either disconnect (timed out) or see scenery and after while disconnect (timed out). If I go look at the players before they disconnect I can see their head and hand movements. I don't have any plugins because I removed them in hope that could help. What could be wrong?