New_builder bug - I've met the unbuildable!

Summary:
Created a fairly normal building out of slabs and roof tool via the new builder, which throws an exception with the note: “I really thought this was impossible.” and the hearthlings totally stop all building forever.

Steps to reproduce:

  1. Start fresh Stonehearth game (ascendancy, forest, normal mode)
  2. Construct the building I built I suppose? I dug out one level of earth below it and built it into the hole.

Expected Results:
The building will build normally.

Actual Results:
Script throws an error and stops the entire new building system, rendering it nonfunctional.

Notes:

This is the error produced. I’ve tried clearing and rebuilding from a saved template, reloading the UI, and restarting the game.

release-815 (x64)
co-routine failed: …ing2/plan/jobs/blueprints_to_building_pieces_job.lua:300: I really thought this was impossible.
stack traceback:
[C]: in function ‘assert’
…ing2/plan/jobs/blueprints_to_building_pieces_job.lua:300: in function ‘find_root_point’
…ing2/plan/jobs/blueprints_to_building_pieces_job.lua:154: in function ‘run’
stonehearth/lib/persistent_job_sequence.lua:39: in function ‘run’
radiant/controllers/persistent_job.lua:43: in function ‘f’
radiant/lib/env.lua:15: in function <radiant/lib/env.lua:14>

Attachments:
Dropbox Link to Busted Save File

Version Number and Mods in use:
Current rickety_building version (815?)

System Information:
[Link to current DxDiag.txt]
(Dropbox - DxDiag.txt)

2 posts were merged into an existing topic: [new_builder] In game error including “I really thought this was impossible.”