This an old issue revisited. Useto keep a bag or 2 open all the time and it would stay open even zoneing. I think after LU51 it started closing when you zone. Are others still having this problem and whats causing the window to unload is it like the quickbuttons player window like what happens when goto BG.
I personally tried deleting the character file and resetting up windows since then i have a new machine with everything loaded new and it still does it so i cant say its just some setting somewhere.
Seems as thought the windows stay up durring the loading of a new zone but right at the last sec as you see you character appear it goes poof
