Brigitte has a tendency to randomly turn when pulling up or dropping her shield, or when using an ability with the shield button held. It has been a problem for a while, and needs to be looked into.
Hey, I have kind of a megathread for this bug. If you have any videos or highlights with it after v1.29 please upload them (You can use gfycat.com or youtube.com ) and i will add them to the thread.