Rek'Sai Unburrow and Tunnel Bugs

These issues happen with both classic skin and Eternum skin Rek'Sai.

When I use Unburrow and knockup a target, the purple/red (depending on the skin) circular countdown timer surrounding my enemy does not appear. It appears on YouTube videos, the champion spotlight, and also on my friend's computer, but it does not appear on mine. It is worth noting that the same issue happens with Yasuo's Sweeping Blade, and the countdown timer does not show at all. This makes it incredibly difficult to play Rek'Sai as I do not know when I can knockup and enemy again.

When I use tunnel, occasionally the tunnel exit will appear on the other side of the terrain I am trying to tunnel through, but I will stay next to the tunnel entrance.

Please fix this. I have had this Unburrow and Sweeping Blade issue for ages.

I use a Mac, if that helps.