Hello @zedie
to answer some of the questions in your post.
-attachments would include: save game file, stonehearth.log file, screenshots, templates.
-Version number is: release 553 as displayed in your error message.
I have had building mess up due to trying to change them after I hit build. Including your stonehearth.log file, which is located in your stonehearth folder may provide additional clues as to what process threw this error after the change.
reporting your information here may also be useful.
http://discourse.stonehearth.net/t/a16-the-buildings-my-hearthlings-will-not-build-round-2/22200