3.26 Abyss Not Ending / Infinite Spawning

I am having multiple abyss nodes in my map that are unable to complete, due to the abyss bugging out part way through, and just keeps spawning handfuls of monsters without progressing. I've tried leaving the immediate area, teleporting out of map, nothing I do seems to effect it.

It does seem to happen around the time a spire should appear? This is currently happening in Lighthouse map, not sure if others are having similar issues in other maps.

Happened to me just now at the time spire should spawn too. Bumping.