Bukkit

Clear Lagg Version: 2.9.7
Spigot for 1.12.2

mob-breeding-limiter:
enabled: true
max-mobs: 5 
check-radius: 15 (Where is this radius's cencer??)

Some mobs often don't seem to respect these conditions. For example, one of my players just reported that two of his wolves couldn't reproduce at all, and there where no other wolves around + these hadn't ever reproduced.
Sometimes two freshly spawned cows don't get to reproduce more than a certain ammount of times, which isn't necesarily the max-mobs counter.

Maybe I just don't understand how this check works, but couldn't it be improved?

mob-breeding-limiter is designed to prevent players from causing tons of collision between animals by breeding them over and over again. 

check-radius is the radius around the breeding mobs to check for mobs. This accounts for ANY mob around during the breeding.  So even if you have two wolfs, you cannot breed them unless there are less then 5 mobs within 15 blocks 

Allright. That's some valuable info. Feel free to close. Thanks!