[MC-1202] Mobs spawn and then quickly despawn in peaceful. Looks like the "ender-porting-out-of-water" effect.

When difficulty "peaceful" is enabled (EDIT: in multiplayer!), mobs still spawn but then quickly despawn (also that causes the "skeleton shoots me in peaceful" bug). Can't they just not spawn in peaceful at all?

As far as I know Java, that shouldn't be too difficult. Just some lines of code.

Linked issues

is duplicated by 5

MC-3586 Updated multiplayer server to 1.4.5. I am playing on peaceful but am seeing the monsters flicker in and out of the playing field. Resolved

MC-10593 Wither spawner not working correct Resolved

MC-12480 server mob glitch Resolved

MC-14544 Zombies spawn in peaceful Resolved

MC-50012 Slime spawn when there not meant to Resolved

Comments 9

Michael 2012-11-01T12:09:48Z

Confirmed, but only with mob spawners

Meta 2012-11-01T12:58:03Z

I have that issue with regular mob spawning in the dark aswell.

EDIT: I noticed it only happens in multiplayer! I'm sorry for forgetting about that. Short video will follow.

Meta 2012-11-01T13:17:02Z

Uploaded a video. You may note that "/diff" is not a vanilla command in multiplayer (it's from my bukkit plugin), but I tested it with vanilla too and it's the same there.

David Frey 2012-11-15T19:12:32Z

Also present in Minecraft 1.4.4 SMP

Holger 2012-11-20T16:37:49Z

Also present in 1.4.5 (SMP)

Daniel Conley 2013-02-12T18:49:23Z

I have also had that issue when changing the difficulty on a server from Normal to peaceful.

doom0r 2013-02-23T14:08:13Z

I'm standing on an ender farm in the end in SMP watching enderman spawn for a fraction of a second causing the pistons to activate trying to push them off the spawning pad which is a pressure plate wired to the piston. Chunk updates spike as it happens and occasionally there is a redstone update on my torch ladder which is an entirely separate circuit. This does not happen with the identical design on single player. Changing gamemode to creative in multiplayer does NOT resolve the issue either. 1.4.7 sp and server.

Danny Redmond 2013-03-13T22:28:06Z

confirmed for all conditions of mob spawning in 1.5, they simply spawn and despawn

kyle cothron 2013-05-07T21:56:05Z

i've seen the glitch/bug
first saw it in the rain then it was just were ever it was dark
i was in a server with a friend and he recorded it
it was causing some frame rate issues
the only fix we found was putting up light sources