I can verify this is happening River watch in the day time in the shot and I stayed and waited till many hours after dark and the only thing that spawned was hyena.
I’ve had spawns break in the Jungle. I run it constantly with thralls to level them up and slowly less and less mobs are spawning. Up to about 4-5 spawn points that just don’t spawn anymore. Mainly in the two rows of pillars located at the white mountain icon at the NW corner of N5. There were two birds to the west of it that are not there anymore, then a bird at the SW corner of the row of pillars is gone, and now a gorilla. There was another gorilla somewhere else that doesn’t spawn anymore. I thought maybe it was mods (specifically NPC_Multiplier) but now I don’t know.
edit: one of the birds is in the SW corner, not the SE as I originally posted. Still not there.