Attacks from shadows for rogue are delayed. When using synchronized strike and following up with an attack, in this case chakrams, there is a long pause until the attack fires. This can be slightly worked around by repeatedly pressing the attack button but there is still a delay.
Dancing strikes is also bugged, it will stop and delay while holding the attack. But as with the shadow delay, if you repeatedly press the attack button it works as intended.
Video of both issues are in the link.