Stash grid sometimes works, sometimes doesn't

[levinium]

Seems random if it works or not requiring a restart to have a chance to get it to work again.

[Xebtria]

having the same issue.
works always in normal tabs, but is very buggy in quad tabs.
I noticed that usually it also works in quad tabs if the item is within the top left 12x12 quadron. It seems to sometimes work, sometimes not (not really found out yet what the trigger is) in the left 12x24 half of the quad tab, and it seems to never work in the right 12x24 half.

I also found out it might be a difference whether I open the stash tab before or after the buyer joined my party, but really not sure about this.