Can't Purchase Leased Planes

Hi Fellow AEers!

So recently my life (and computer) exploded spectacularly, hence why my airlines have all but frozen in growth; I need to rebuild my charts and route planning from scratch. However, I did notice a bug this evening. I also can obtain screen shots but I'm going to try and explain it first.

I leased a bunch of MD-90-50's and now that I have obscene amounts of money, I tried to group buy them all. But I couldn't. Half of them did go fine, but the other half show a lease expiration of 0/0/0000 (a problem I know you are all aware of) and it won't let me buy them. It let me buy the others, but there's 8 that are being stupid and not working for me. So I got a message that said "oops... the aircraft you selected has a total purchase value in the negative. Looks like you can't buy them all together; try alone." So I did. Same message. I saw that some people had gotten free planes because of this bug, but it won't let me do anything with them. They're currently not being flow on any routes, they're just sitting in Pittsburgh, taking up space and getting fat. I use Firefox. It has a Criminal Minds Persona. That's probably irrelevant.

Thank you in advance, as always, for your hard work and consideration!