Tryndamere Ultimate Bug

For the past weeks I have been playing Tryndamere and I noticed a really important Bug with his ultimate. In many situations I have been unable to activate, sometimes more than 2 seconds after I pressed it, leading to many deaths and problematic gameplay. I have experienced it in a big amount of games , sometimes more than once in each game, and often enough it costed me the lane advantage. I also noticed that many other players have experienced the same issue such as the trynadmere main and streamer named BoxerPete . Thank you in advance for dealing with this issue.