Tonight we hit an issue on SMP7 where a player let his grinder build up over 400 monsters, and it made the server reach the mob cap. The cap is impossible to calculate, but when the server is not full its ALOT lower than what it would be say on a weekend, as theirs multiple factors into how its calculated. So, I ask any of you., please do not let your grinder reach over 200 mobs. Pref kill at 100-150 max. When this happens, natural spawns cease to happen. I noticed my grinder just completely stopped spawning, and teleported to the player I suspected of the cause and sure enough it was like 430. I asked him to kill them, and soon as he did, my spawns returned to normal. To find out how many mobs are loaded in your area, press F3, and the "T: All: ##" number will show you. Now that also counts item drops so if you got alot laying on ground that'll count too (its Entity Count), but doesnt count towards the mob cap, so pick items up so you can accurately judge Please do not let your grinder use impact the entire server or we will have to take action against you. You will not be able to detect if you hit cap with mob spawners as they ignore the cap, only natural spawns are affected, so please just don't let it reach 200+.