For some reason we are suddenly seeing very few wilderness hostile mob spawns.

We shored up defenses around a village, and added a few homes with beds and doors. The village is prospering greatly, and spawned many additional villagers, more than can fit in beds. 5 iron golems spawned in patrolling.

We also found a zombie spawner withiin the town limits, and created a zombie farm.

We've not seen an illager for 12 days now, and we never once got bad omen even though we killed two banner carriyng illagers.

The village is half on desert, and usually at night its crawling with hostiles... now if we see one or two that is a LOT.

We will see an occasional spider of creeper, but at most maybe 2 or 3 total a night.

We saw something similar on our last beta world, and finally abandoned it because we thought the world was broken...now we are thinking there is something negatively impacting hostile world mob spawns either when you get a larger successful village, or create a zombie farm.