''City building'' resource sink sometimes bugging

Hello! I´d just like you to know your game is, possibly, a masterpiece. I am very critical of these things and i love that your vision is unflinching, and your game design is specific and targeted.

Now, for a bug that has been pretty frustrating, it seems the ´´city building´´ mechanic sometimes will take your resources and not account for them.

I payed for the same construction, specifically ‘‘enchantress lvl 3’’ about 2 times, and it just consumed my resources and did not advance nor contribute.

Thank you!