Oh, do I know the Anniversary Update has not been exactly smooth!! This issue is about the only one I've had, really, but I work with individuals who are blind or visually impaired, and the various groups I'm on for that community have been lighting up with issues that have cropped up after the Anniversary Update, particularly in relation to the assistive technology they use, that remind me of the earliest days of Windows 10.
This is the first of the upgrades that's been released that I really don't think that Microsoft came close to adequately testing before releasing it "into the wild." There have been far, far, far too many issues reported and a wide variety of those as well. By this point in time I expect that these upgrades should be as close to perfectly seamless as possible, but they're not. Also, Microsoft should not be making changes like moving the power button without warning people that this is one of the changes being made. Anyone using accessibility software expects that the structure of the start menu will not be changing without warning. It did for this upgrade.
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
Memory is a crazy woman that hoards rags and throws away food.
~ Austin O'Malley