Strange Eco numbers while upgrading mayors house

[Dorotheus]

I've just finished upgrading my mayors house to level 5. The strange thing is that while the upgrade was on going the Eco tool was reporting that my water and wheat production was only about 90% of there normal amounts. I have matched farms/Silos and also enough watermills to supply my needs so I have no depleted wells or fields to account for the shown loss of production. Now that the Mayors upgrade has finished Eco is once again showing I have 100% production.

[Larili]

Just guessing Dorotheus, but could it be some of your farmers/well settlers had to travel further to another storehouse? ( Never noticed settlers not using a normal storehouse whilst it was being upgraded, but maybe Mayors house is different)

[Dorotheus]

No water production in sector 1, so I can't see how mayors being upgraded would have had made a difference. If it was increased walking time then the biggest impact would have been on my pine wood chain, as that had remained in the green during the upgrade I had no cause to check the figures in detail to see if it had been effected.