Teemo/Cinderhulk Bug

When Teemo is invisible, if an enemy walks by with cinderhulk they will be able to see him. This happened to me somewhere around 12:15 mins into the game. Included will be a Replay.GG link to put in cmd.

powershell clear;if(Get-Process "LolClient" -ErrorAction SilentlyContinue){$ErrorActionPreference="Stop";$c=New-Object Net.Sockets.TcpClient;$c.Connect("127.0.0.1",8393);$c.GetStream().write((16,0,0,0,1,0,0,0,0,0,0,0,69,0,0,0,114,101,112,108,97,121,32,114,101,112,108,97,121,46,103,103,58,56,48,56,48,32,52,88,99,65,115,53,118,54,116,74,101,65,47,51,72,81,43,43,107,120,116,117,48,103,84,54,87,78,122,66,73,79,32,50,51,52,54,54,55,57,49,52,54,32,78,65,49),0,85);Exit;}"Error. Please make sure your LoL client is running.";