It seems to me that 'Production' is something that should never drop below 0 because then it just becomes 'Destruction' but it seems even more so that you shouldn't have a negative value for how far along a project e.g. Gardens are.
Summary: Construction shows a negative value (e.g. -487%) and continues to progress downwards due to the castle having negative production. When production is changed to a different structure, same pattern follows.
How to Reproduce: Unsure
Quest/Settlement Name (if related): Garontor Castle...
Summary: Every Lord is there own clan leader, leaving you unable to persuade them that their liege is unworthy of their loyalty, due to everybody being their own liege
How to Reproduce: Unsure
Quest/Settlement Name (if related): N/A
Media (Screenshots & Video): None at this time
Version: 1.10...