Board Thread:Help!/@comment-20427175-20130917225504/@comment-19483787-20130918203136

Yes, I had the same thing happen. Insted of putting the potion in the quick bar, then using it, try pressing the key 'B'. It will buff you with all the potions that you have in your inventory. That is the only work around I found.

Edit: Unless you changed the default key map.