Hostile Mobs don't despawn naturally. I was AFK and around 20-30 mobs spawned around me. Other players noticed that they were getting no mobspawn. One of the others Tp'd to me and found This
I came back and went into GM3 as the only person on the server. Mobs did not despawn. Relogging also did not cause them to despawn. Again, I am the only person on the server. I have attached a small clip to show what I mean
Environment
Mac OSX 10.13.6
4GB RAM Assigned to Server
Startup Script:
#!/bin/sh
cd "$(dirname "$0")"
while true
do
java -Xincgc -Xmx4G -jar server.jar nogui
echo "If you want to completely stop the server process now, press Ctrl+C before the time is up!"
echo "Rebooting in:"
for i in 5 4 3 2 1
do
echo "$i..."
sleep 1
done
echo "Rebooting now!"
done
With the Update of 1.14.1 this issue is now resolved