Perhaps this is related to something I am experiencing as well.
I always carry a backpack within my main pack to carry small essesntials including small bags. I always have both open as I play.
Today if I try to open the backpack within my main pack like I've always done it closes my main pack. To work around this issue I am now simply using a small bag within my main pack to hold my secondary items (I consider primary items like bandages, arrows, etc. which I keep in my main pack). However, this does not allow me to use the small bags I've come to depend on within that to help organize my loot.
Is this by design? If so, I could learn to live with it however I just want to make sure.
I haven't tried the bank scenario since all of my vendors have revolted again and it is impossible to test while my bank box is overloaded. I'm going to find the Vendors thread next to talk about that issue. However, I found that I could open multiple backpacks from a chest in my house and then open my backpack but not the other way around. So that might be related to your bank issue. I will try to test further once the server comes back up.
