I have wondered why there is that ‘cancel upgrading’-button in buildings?
I was upgrading barracks to level 12, what takes (without accelerating) 2 days and 21 hours to complete. I was over 50% complete of upgrating and by accident I pressed that cancel button. And that was it: 1½ days upgrading went to zero and it does not gives your resources back. That’a annoying.
Is that cancel button necessary or is it possible to remove?