UEFN island crash when PutInStasis is called on a fort character spawned from an NPC spawner device - 39.00

Summary

Hey all, I have noticed with the update to 39.00, our UEFN builds now crash whenever a call to put the fort_character of a NPC spawned from the npc_spawner_device into stasis is made (PutInStasis).

This was working with 38.10 with the call causing the NPC to stop moving until a subsequent ReleaseFromStasis is called. As of 39.00, calling PutInStasis causes the game to freeze for about 20 seconds before the game ultimately crashes. Any help with the matter would be greatly appreciated as our game heavily relies on this functionality.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

AI

Steps to Reproduce

  • Spawn an NPC from a npc_spawner_device
  • Get reference to the NPCs fort_character
  • Call PutInStasis() on the fort_character

Expected Result

NPC stops moving until a subsequent ReleaseFromStasis is called

Observed Result

the game freezes for about 20 seconds before the game ultimately crashes

Platform(s)

Windows