Occurred in real-match, and occurs consistently in Sandbox mode.
If a Yamato grapples a Kelvin who then ults she will be sent into the opposite direction to whatever her current movement is. Sometimes this will even send her in seemingly random directions or even just start making her rapidly...
If you are not present for a patron losing its first health-state, (weakened) is not appended to its name. Has happened a few times thus far, not the worst bug but the outcome of games has been changed based on its decision making effect once in my experience.