Breach hive quest fails to trigger Ailith (Bug Report #1,294,658,095)

I was tackling the Breach questline, and starting to make progress towards the Hive Colony. Two maps away from the first marked actual Hive Fortress, the breach encounter turned out to be a Hive. Except that I had never received the quest state to get the Blessing of Chayula from the Monastery of the Keepers. Ailith spawned and followed along, but there was thus no way to actually destroy any of the walls, and the Hive was thus impenetrable and impossible to complete: a map softlock.

Having done some further research, it appears that there is a tiny chance for random breach encounters to be a Hive instead of an Unstable breach, and this might just be what had happened. Since completing Hives requires reaching a certain quest stage to acquire the Blessing of Chayula first, it appears to be an oversight to allow Hives to randomly spawn until the player has reached this quest stage.

• Bug Report ID: #1,294,658,095
  
  
• Reproduction: This happened while progressing through the targeted region of Breach-containing maps. An Irradiated + Ritual tablet were used, and numerous other contents spawned randomly: a mirror of Delirium, a single wisp (with Delwyn present) as well as at least 3 strongboxes and 3 essences.
  
  
• Screenshot: Attached is a screenshot showing the Hive walls with no means of getting past them.
  
  

Update: after opening a new map (and suffering the whole penalty for "you attempted this already") the hive was there again, but this time, the apparent correct behavior occurred, with Ailith stopping in front of it and giving the dialog sequence that enabled the Blessing that allowed burning those walls, and the encounter proceeded normally.

So the original description of the bug was incorrect; rather, it appears that an interaction of some form caused Ailith to fail to actually trigger her dialog prompt to allow the quest to progress.