did something happen to the simple command + and command - zoom keyboard shortcuts? I've been using those since 1995 or 6, and now when i use them it centers me on a specific, but unselected artboard?
Please accept my sincere apology for the inconvenience. Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.