Reksai cheats Warwick's Ult

I played a game as Warwick vs Reksai and I ulted her 3 times duelling in the jungle. Each time after 1-2 ticks of my ult Reksai would ult and disappear off the map while being suppressed. Warwick would be locked in place while continuing to channel his ult against the air where Reksai was and when my ult ended would come up taking no damage since she wasnt on the map.

Issues

1. Reksai is able to cast R while being suppressed by WW
2. Takes no damage since she's off the map
3. WW is locked in place doing nothing during this time (self CC) because of Reksai's disappearing act