Yeah seems relatively rare but for those who have it, it is absolutely game changing. If you main jg and dc... GG. Tarzaned is having similar problems and is considering hanging it up for the season as it is unplayable when high ELO will almost never lose when given a 2 min advantage. My pc runs games which are infinitely more demanding but for some reason every season there is one patch that not only fucks me in game, but actually destroys my pc. When a game crashes, ranked or ARAM, I cannot Alt Esc, Alt F4, or even Ctrl-Alt-Delete to task manager... I can only force a shutdown or Ctrl-Alt-Delete and sign out which is the quickest recovery at about 2 mins of missed game time. Unfortunately, 2 mins is about 4 waves on avg so unless you're a support main you are gonna lose a lot of xp and gold relative to an opposing laner.. and even then it hurts.
Also, EXTREMELY unfortunate that it comes at the end of the season where I really want to grind my hard stuck Plat 2 ass to low diamond for the pretty border.