Mouse stops workings after death

If I die my mouse stops working properly. I can still click on the screen, but I can't change the view by moving the mouse to the edge of the screen or click on the map. Thsi happened twice already and the solution was restarting the game. First game: 1. I was playing Zilean 2. I got killed by Lee Sin and after respawn the mouse didn't work properly 3. I tried different USB ports, but that didn't help 4. I used alt+f4 and restarted game, this fixed the problem I had spellthief's edge, rod of ages, and boots of speed at the time of death (maybe void staff not sure) Second game: 1. I was playing Karma 2. I got killed my Nocturne after Respawn again the mouse stopped working properly 3. I repeated step 4. of previous game. At time of death I had Frostfang, Morellonomicon, Zhonya's Hourglass, Amplifying Tome, Blasting Wand and Sorcerer's Shoes. I'm not 100% sure, but both times I died in Drake pit.
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