I believe the enemy wasn't stunned for the 1 second after fully channeling her ultimate. This happened a couple of times while playing w/bots.
#1 12/2/2012 10:07:01 AM
#3 12/3/2012 12:07:01 PMCan you give more details about the circumstances around the time you experienced the bug?
Do you remember which champions were involved?
Did it happen every time Morgana used her ulti? Was it only in one game or all the games you played were a Morgana was involved and the issue occured?