I absolutly love the game but the upgrade policy is something I can't get my head round and really really annoys me.
For those of you who don't know what it is - when you upgrade a ship and decide to upgrade all of that class at the same time by using the "upgrade all" button, it will cost you around 30% extra than if you upgraded all the ships one by one.
Now, I had always assumed this was a bug and an annoying one at that is it meant a lot of extra useless clicking around unless you wanted to be penalised for using one of the games options.
I just don't understand why a) the bug hasnt been fixed and

why none of the devs have recognised the bug and said they are working on it - they have had enough time...
Is it just me or does everyone find this immensly irritating when trying to upgrade ships accross your empire!?
Can we get a word from the devs on this... please!