[Esen]

Yes, and it's really bugging me. @_@

Goes for all items that can stack together really... Unless it goes into an already existing pile (like when you pick stuff up), they won't stack together for some reason.

Edit: You can move stuff in and take stuff out, they just have to be done using an empty slot as long as the problem exists. You can still switch one item(s) for another item(s) though.