Recall and shields as of patch 5.20.
There is a bug with recall that makes it so that champions that are recalling with a shield active during the channel cannot be interrupted without hard CC or direct damage to their health( I.E - Either breaking through the shield or the shield timing out and dealing damage after).
This was supposedly fixed back in patch 4.4 but after watching today's AHQ vs SKT game I noticed this bug. So any fixes for this or am I missing out on a patch after 4.4 that said shielded units recall cannot be interrupted.