Okay i've been having this problem for a while now and it keeps happening and it's very annoying. I keep having to re-do my bank setup because of items randomly moving to other tabs.
Ive realized that the items that this happens with is with.. Runes, ensouled heads and skillcape hoods.
When i take out ensouled heads from my bank. The hoods go into the tab where the ensouled heads were and the runes from another tab go into the tab where the hoods were. This is very time consuming having to fix my bank every time this happens. These are just the items i've experienced this with. There may be more.
Alot of people I know are having the same kind of problem.
PLEASE FIX THIS!