[Spawn rate] Mobs won't spawn

I've searched for a while, but didn't find anything. So I decided to make a topic about it, hoping for help.
I am having complaints from players on my server that there aren't any mobs spawning, or at least rarely. They said something about a mob limit, so I disabled my multiworlds because they wanted that. I just went along, to see if it really helps. But it doesn't work.
Just a week ago, everything was fine, and nothing has changed since then.
Does anyone know what the problem might be?
Thanks in advance!

 

Whats your server properties look like, post below. Also what plugins do you have.

 

Code:

#Minecraft server properties
#Tue Mar 22 15:27:52 CET 2011
level-name=world
hellworld=false
spawn-monsters=true
online-mode=true
spawn-animals=true
max-players=20
server-ip=
pvp=true
server-port=25565
white-list=false
spawn-protection=16

I currently don't have acces to a recent one, but it hasn't changed from this one, except for flying = true.
Plugins:
-Blockhead
-mcMMO
-MagicCarpet
-Voxelmore
-NetherPortal
-Wormholes Extreme
-Portal Stick
-Everything from Craftbook except vehicles.
-Bukkitpistons
-Citizens
-Remote chests

That's all I can think of now, since I don't have acces to the computer with the server. This evening I will post the rest of it.

 

I have had a similar problem, it was because of a plugin called PerformanceTweaks.

 

Well, at least I'm sure I don't have that plugin..

 

Post all your plugins.

 

Ok, now the full list is coming, since I'm on my computer right now.

-Blockhead
-mcMMO
-MagicCarpet
-Voxelmore
-NetherPortal
-Wormholes Extreme
-Portal Stick
-Craftbook
-CraftbookCircuits
-CraftbookMechanisms
-CraftbukkitUpToDate
-Eggrenade
-HomeX
-NSCommand
-WorldEdit
-Bukkitpiston
-Citizens
-Remote chests

That is all. I also have three worlds in total, just to note.

 

has anyone found a fix to this? i am also having the same problem

here is my plugin list

Show Spoiler Hide Spoiler

AFKCommands
ATM
AuthDB
AutoKick
AutoReplace
BigBrother
BlackJack
Citizens
DelayedStop
DiscoSheep
Dungeon
Elevators
Help
Lockette
LoginMessage
MagicCarpet
MultiVerse
Permissions v3
PorteCoulissante
RaveBlox
SaysWho
SimpleVend
SpawnControl
WeatherGod
WhoAreYou
WorldEdit
WorldGuard
dynmap
iChat v2.3

iConomy v5.0.1

and yes my perms and server properties is correct

 

try disabling citizens... you both have have that in common

 

Dont know why but set your view-distance to 10 from 8 in your server.properties.

Seems to be a bug.
Worked for me.

 

the 10 to 8 fix didn't work for me. And I noticed earlier today, that i loaded a friends world onto the server and replaced the normal world. There were loads of creeps spawning, and when i reverted back, back to nothing.

 

You should set the view-distande to 10 NOT 8...

Just to make it clear...

Minecraft-Wiki: Setting the new server option view-distance lower than 10 reduces the spawn rate significantly.

Everyone with this problem should at least try it.

 

yea sorry misread that, switched it to ten but still nothing unfortunately. The only spawns that showed up were tamed dogs and 3 squid.