Something similar happened to me a while back, though I think it was right before the update - the camera wasn't responding (it didn't move when I moved my cursor to the edges of the screen) and the left-click was unresponsive. I had to double-click and drag the viewbox on the minimap to be able to see anything at all, and the entire time I was relying on my teammates' pings to tell me where to go (even got a triple kill thanks to them, now I know what it feels to be a pilot relying just on instruments to navigate lol). It was only one game though, and the mouse didn't forcefully move anywhere else, but my own pings and left-clicks didn't work. Pre- and post- game I could click as normal and it stopped bugging after that.
I heard at least 2 other people had a similar problem with the mouse being forcefully moved towards the enemy fountain as well.