AI agents going dormant since last update

Summary

I only tested with creatures but I’m assuming it’s a navmesh problem here, see the following video :

When I go to worlds where players are already playing, the zombies are working fine, however if I’m the first player going to a new world, the agents will go dormant for 10s+ to almost a minute, depending on the current server health/state (?)

It’s annoying when it’s a low duration, but it’s a real problem when they freeze for a minute, and our map is not really complex

In the video at 0:40 we can see that even after the zombies start working, if I teleport out and in again, they’ll be stuck again

Our map uses World Streaming but I’m not sure it matters here?

I’m assuming it’s a new navmesh optimization process or something but it would be great if it could be optimized, or if we had a volume to always force the navmesh generation for specific areas

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Stability

Steps to Reproduce

  • Add zombies
  • Teleport to them

Expected Result

They should start walking right away

Observed Result

They’re freezing in place for a while before they start moving

Platform(s)

PC

FORT-847906 has been added to our ‘To Do’ list. Someone’s been assigned this task.