I updated PLAYERRANKS / BOTSPAWN and ZONEMANMAGER today and the console started with these messages (I alreaady left a message for author of the other mods; this is merely a long shot in case it is a ZONEMANAGER issue):
(10:14:29) | assets/rust.ai/agents/npcplayer/humannpc/underwaterdweller/underwaterdweller.prefab failed to sample navmesh at position (1734.2, -50.0, -1671.0) on area: HumanNPC
(10:14:29) | "SetDestination" can only be called on an active agent that has been placed on a NavMesh.