Aren ' t F 22 s replacing F 15 s ? The only reason we are upgrading F 15 s instead of just building more F 22 s , IIRC , is because , as you just pointed out , we have pretty much no need to , so it ' s significantly easier to just upgrade existing F 15 s for now and then build new F 22 s even if we have to completely restart production lines , since at that point the cost of restarting F 22 lines would be a comparative drop in the bucket , proportionally speaking in the case a war bad enough to need more of them happens than it is to just build a bunch of F 22 s that will have rather little use . <| sep |> I just started playing again when I found out Ditto is out . How come I am getting random crashes ? It crashes when I click on a pokemon , sometimes it doesn ' t . It crashes when I click the clear out my items .