After updating to 1.14.3, no (most) hostile mobs that naturally spawn are spawning. Creepers, Spiders, Zombies, Guardians, are not spawning. Meanwhile, spawners still work, Phantoms still spawn after several nights, Elder Guardians still spawn in ocean monuments, pillager patrols still spawn, and raids still happen. The End and the Nether have normal spawn rates, not affected at all. I've tried making copies of my world and trying the new 1.14.4 pre-releases, and the issue still exists. Thank you for your time.
PS Zombie Pigmen getting aggro-ed by skeletons shooting them is REALLY annoying lol.
Related issues
Attachments
Comments


Duplicates MC-155289. If you are having these issues in 1.14.4, post a debug report to that ticket as described in the mod notice.

I am experiencing this issue with 1.14.4 today (23 July 2019) and the past day or two.
I've explored most of a large mine and not run into any mobs other than spiders coming from spawners. Also, no critters have been spawning above ground at night.