[GAMEPLAY] Issues with Evelynns ultimate

Evelynn doesn't appear to be genuinely untargetable during her ultimate, a couple of times now I have died to auto attacks during the ultimate animation, which will teleport me backwards (showing the full animation) but will do no damage, I then die immediately afterwards and the cooldown of the ultimate is reset. The ultimate should cancel all auto attacks so the only possible way to kill evelynn during ultimate should be delayed abilities or damage over time, neither of which was the case when I died.