I was just in a game and I bought a recipe while I was away from base, and I couldn't get it out of the stash. A teammate told me to stand in the fountain and push B. Ok, did that. Stash comes up with the recipe in the first slot. Then he says drag it. I tried right-clicking and dropping it on my hero. Nothing happens. Left clicking it just fills my screen up with the shop menu directing me to where I already bought the item. I stood in the fountain, right up next to the shop, nothing worked. Then the game booted me for being "idle" (which, on a separate note, is a RIDICULOUS method for stopping afk'ers, but one thing at a time). WTF?
Nevermind, I know what i did wrong. Dragging to hero =/= dragging to item pane. The dc for being idle just if you're in the fountain too long is still dumb, though.