What I noticed that in many ways turned off buildings are not functional.
If resource building that gives perks is turned off, you can't buy that perk.
If Military Academy is turned off, you can't upgrade mage to magisters.
Also food/mana/gold income/drain is removed.
This all makes sense.
But, you can train units that such building provides (even magisters from previous example can be trained).
This seems more like bug, then design decision. Thoughts?