[BUG] Sylas Stolen R wrong cooldown timer

Hey Everyone!

I tried to record this game to show you what I saw but when I looked back through it , it looked normal. My team got into a team fight- I was Sylas and I stole Teemo shrooms - I used all three before I got bursted by a Yi - so there was a lot that was going on in the field. When I respawned it still said I had Teemo's Ult...but with a 28 minute cooldown timer. Yep.. 28 minute and it would countdown as such.

After a bit I disconnected and re-connected and it still said I had 26 minutes left. And it didn't reset back to normal until after I died. But all those minutes in between were super weird- it was hard to participate without an ult..

I wonder what this could be?? [sg-lux-2]