Trading… built trader, second trader appears, both stay 0 days. Additionally, transfer gold to trader, bought items twice, gold still showed available, inventory increased.
To halt building monthly upkeep, you need to toggle production. Removing the worker does not disable it.
Same issue with Guard towers and I have it both empty of workers and production toggled off
it takes a few months for it to stop. it is not instant. What happens when you wait say 6 months?
It never stops. Went on for 16 years at least
Do you have soldiers? Their upkeep is in the same category.