[END GAME] Mouse disappearing and stuck in the middle of screen

This so far has been the first time I've seen this but, just now I had a bug where my mouse disappeared at the end of the game. I tried moving it around I finally alt tabbed out and then back in ,but then I noticed when the mouse did finally show up it was stuck in the middle of the screen. I tried alt tabbing again I even tried closing the program, but the minute I would go back to my desktop with league still open it would just stay stuck. I finally had to restart my computer so the program would close and my game could finish. I will keep my eye out for this again, but if this is a league client bug it needs to be addressed because I am not going to restart my computer after every game cause it freezes my mouse. If this has happened to you please bump the post otherwise ignore. Again so far I've only ever experienced it once so hopefully it's nothing, but decided to post about in case anyone else has had this.