Trade market favorites don't work properly

I can't exactly pinpoint the cause, but the trade market favorites don't last forever. It works fine when I logout, but I think they are erased when I get disconnected due to inactivity (suppose I swap apps to watch a video/movie while I leave my char logged on in the hideout, when I come back I get disconnected, and when I log back in the favorites are not there).

Also, great work both on the currency exchange UI and the trade market UI, they are excellent!