There are already multiple threads about this awesome new bug that Blizzard was so kind to deliver to us with this new “patch”.
In short, they’ve completely broken the Aspect Of Repeating. Whenever it procs, it breaks the whole Rapid Fire salvo. This means that in the worst case scenario only one arrow will do any damage. So if you have this Aspect Of Repeating in your build, remove it. This is another of big Blizzard’s fups because the AoR is core aspect for many RF builds - including mine.
More here for example: Rapid fire not working AGAIN