Hi,
I have upgrade my Storehouse from level 1 to level 2 and get 1400 storage room. Then I have upgraded 4 more storehouses to level 2 and rise expansion to only 2200 storage room. Then I have upgraded only one Storehouse from level 2 to level 3 and now I have get 4400 storage room.
Question: Is this a BUG or it is just some special calculation system I just don't understand?
Tnx