Update: My minecraft server just crashed on me and everything has disappeared! This is on Minecraft Version 1.14.1!
So the bug is still happening!
All tamed mobs, boats, minecarts, everything have all disappeared after the crash!
Well, with 1.14.1 out I made a 1.14.1 server with the latest dev spigot for it. I restarted the test server I made on my pc a few times over and over again and no mobs or entities have not disappeared so far. I put some animals, villagers, some tamed around near spawn, and some over 1,000 blocks away. Everything seems to work so far.
Update: I updated my other server to 1.14.1 Everything seems to be going well after a few restart tests.
After updating to 1.14.1 and starting server back up all the mobs/entities stayed.
1st Restart all mobs/tamed pets I checked all stayed around the world except for the ones around me.
2nd Restart I respawned mobs around me before restarting again, after the restart all mobs stayed around me and around the world.
3rd Restart everything stayed without disappearing.
So far mobs/entities seem to not disappear anymore on 1.14.1 Spigot.
I'm having mobs, entities, like item frames, tamed horses, named tagged mobs, tamed wolves, parrots, and villagers keep constantly disappearing on my 1.14 server when ever the server needs a restart or crashes and is started back up.
I wrote a post about it here on Spigot Forums:
Okay, Thanks. I'll check that out.
I think it's just server related right now only with Spigot 1.14.
It's a new book and quill that I'm using from creative mode on 1.14 that I'm trying to write.
With what I'm seeing from many players, with the bug happening in single player and multiplayer. It's kind of taking the fun out of the game when we can't even farm mobs or have tamed mobs around when everything just disappears on us. Also annoying when having item frames with items in it disappear or minecarts used for redstone farms.
1.14 & 1.14.1 is just not as playable as 1.13-1.13.2 was with this major bug going on.