Bugged Yi

Just played against a Master Yi as Lulu in ARAM and could not polymorph Yi over a dozen times, although it would still trip my cooldown. I can't confirm if it was or was not only during his ult, but with the frequency the issue presented itself, and seeing as it happened when he was sitting still, it seems it is not associated with his ult. My best take on the bug is there is a delay between the time polymorph is cast till when it takes effect, if Yi casts alpha strike during this delay the polymorph is ignored but the CD is still tripped.