Guild Wars 2

Here is the problem, my 2 sets of weapon were hammer and sword/focus, after changing my build I had to change weapons, hammer went for staff, sword/focus for greatsword, everything was nice until I checked that something was missing, that was mine focus, GS changed with sword but focus was gone. Change was done by double clicking GS in inventory and all my weapons are in Invisible Bag which at that time was full. SS shows sword equipped at that time

Are you sure it’s not just equipped in either weapon set? Or that you accidentally sold it at a vendor?

My current equipped weapons are Staff and GS. That’s very unlikely I sold/broke it because as I said weapon change was through double click in backpack so I saw it in real time, it took me some time to realize it is gone, but no so much, other thing is that it was rare weapon and I never carelessly destroy them

Edit: I think that problem here is Invisible Bag and his unique functionality(ignoring sorting) as game couldn’t put it in bag because there weren’t any slots and just delete it

Edit2: Can’t replicate that so I guess that leaves me nowhere