It won't save my texture packs.

Every time I start a game I have to download the effing city texture pack. Every single day. I bet I've downloaded it about 18 times now in the past week or so. It always has the little green dot saying that it's active, yet every time I get into the world, I have to leave and try again. It usually works the second time, I just don't get WTH is going on. 

Also, I don't know if this is related, but why do I have to update 6-32 "packs" every single day?  What are "packs" anyway? They're sure not texture packs, because I have to re-download that every day. 

I understand that I am coming off like a whiny, spoiled child right now, but it just irks me that I paid for something that doesn't work without a constant hassle. 

Thanks for your time, I understand that this is a tiny problem in a world filled with problems right now.