[Crash] With Illaoi Ult

I was fighting an Ezreal near top tower when his allied Kled Ulted in; the Kled ult made contact with me and I pulled his spirit with my E. The Ezreal was already wounded from our skirmish and so he stayed back for a few seconds, but when he came close I Ult-flashed onto him with my Ult while Kled Vessel from my E was still active. For whatever reason, my game proceeded to freeze and my teammates and I had to close the game and reconnect. I've never had a d/c bug with Illaoi's ult before but we all d/c'd the moment it happened.