Ah, so you had a hidden rest. That explains it. As explained elsewhere, hidden items don’t copy on a bar selection. Neither do chord symbols, nor do cross stave items unless you select both staves. Bar selection is like a box of chocolates, you never know what you’re going to get.
As for stem direction and other properties, it’s not clear if there is a good way to do this. I’ve done a lot of tuplet copying in piano staves and what I try to do is find a similar bar to copy and then set lock to duration and re-pitch the notes, making whatever cross stave, stem and beam adjustments are necessary at the end.