Autopathing to the enemy base

I played the new rift for the first time in ranked today as Nasus, for the first time after updating. Unfortunately, I discovered quickly that no matter where or what I clicked, the game would automatically force me to start walking towards the enemy base. Even attacking was impossible. My computer has never done this or anything like it before, so I do not believe it was the machine, though it may have been. I had to reboot the game to get the glitch to stop, causing me to lose my lane and the match.