Enemies hit by Sion's Q seem to "levitate" for a few seconds

Firstly, no, it's NOT the normal knockup the attack has when charged.

I'm not sure if this was due to my system being weird, or if it's an actual bug, but ever since the 5.23 patch, some things have been weird, like textures not showing up in small spots and the like. However, as per the title, I played a couple bot games as Sion last night and found, surprisingly, that his fully charged Q caused enemies to occasionally float in place at the apex of the knockup animation.

They simply sat there, as if on an invisible platform in their idle animation for maybe two or three seconds before they dropped back to the ground. It happened in two different games back to back over the course of the evening. Both times the enemies that were floating were able to be struck, and were dazed as normal, but were in the air. I hadn't seen this mentioned here, so I figured I'd say it.

I'd assume the way to reproduce it would be to just hit some bots with a fully charged Sion Q while in top lane, maybe along with some minions. Maybe the changes in minion pathing forced some minions under them and they got stuck in the air? I honestly can't say. In any case, I hope that helps someone.