Two of the fixes made in version 20H1 were back-ported by Microsoft to version 1903 (Release Preview, build 18362.263).
The first fix is about an emoji bug. More specifically, dragging the emoji panel is extremely laggy and in some cases, the window can’t be closed or stopped.
Here’s how some users describe the issue:
Found an interesting bug in Windows 10 1903 with the Emoji window. The window now floats over the screen and can’t be closed or stopped.
Weird dragging bug with UWP apps on 1809-17763.404
The emoji window is still painfully and inhumanly slow though, so don’t even touch that if you don’t want a headache
Windows 10 users complained about it for some time now, and it seems that Microsoft is finally solving it.
If you can’t get the update right away, the only resolution to this problem for now is to stop moving your mouse. When the emoji window will get to the drag destination, you will be able to close it.
The issue is pretty annoying and users are disappointed with the update:
Just did a fresh install of 1903. Must say, I’m disappointed with the buggy search and startmenu.
I’m facing this issue since i update to 1903 May update and i didn’t find any solution if someone face it before and had a solution, If the taskbar set to auto hide and try to open start menu or any kind of pop up menu it’s hide and while pop up the menu.
You’ll be happy to know that both issue have been fixed by Microsoft and they are coming with the Kb4505903 (OS build 18362.263) in the Release Preview ring.
The cumulative update should arrive to all Windows 10 users in a couple of days.