I am using Windows 11 Home Insider Preview Evaluation Copy Build 22449.rs_prerelease.210827-1350.
I use a dual monitor system where I extend my taskbar. The start menu and other functionality seem to be fine but whenever I try to search for something by opening the start menu on the second screen. The menu disappears and the search button turns green. For some reason, the search menu can not show up on the second screen and doesn't even show up on the first if I was using the second originally.