Entity Cramming

Setting up sponge, nucleus, Luck Perms, Dynmap, World Edit…Migrated from Spigot…trying to get it to behave like vanilla MC. My issue Im having is I typed /gamerule maxEntityCramming 24 and in white text it says Im good to go it worked… I go over and breed my cows in there 1x1 area but they all live none die off due to entity cramming…now I got 50 cows in a 1x1 area. Any idea what I did wrong or should do? This may be a bug??

Try editing sponge.entity-collisions in global.conf.