Using Dice on Renekton alters the cursor until your next dice, and in a bad way of course.
When you use Dice your cursor changes to a targeting cursor and doesn't change back until you use dice again. With this cursor permanently changed you auto attack anything that comes within auto range and you can't close the esc window if you open it.
I'm not 100% sure on how to produce the bug but I am sure that it is a result of using Dice in some way.
No video, sorry.