Not sure whats going on, but I have set my max for my nests to 6 and every time I leave and come back there are almost 20 of whatever I have spawned. I have set up a wyvern spawner, and wyvern nests, rock drakes, and magmasaurs and each time I come back there are way more than my max. Pretty sure I have the correct settings, so I have no idea why they keep spawning.