NPC and resources missing on Swamp/Jungle

I have a treehouse near Descent of dagon on Swangle. Its an interesting place full of resources and a little black hand base with several NPC, three cooks, several fighters and a backpack guy. Also an interesting bunch of silver nodes. Well, since last patch all of these have desappeared. No NPC, no silver. Only furniture remains and a single fighter at entrance. Can someone confirm me that, or it happens only in my server.

That’s the place:

Ty very much at advance.

Has anyone built nearby? Could be blocking spawns

I didn’t think that initialy because I built my treehouse far from NPC and resources. But seems that the game doesn’t count vertical distance. My base was just upside and were blocking the respawn. Ty for answer.