Hello,
The behavior is now more weird than before. My computer has three screens. The main one is at the center and the other two are on its sides.
Right click in the start button of the center display (main), no problem:

Right click in the start button of the left display: first click, opens the menu in the center display. Second click:

Another click at the same point:

Now, right click in the start button of the right screen:

Another right click over there:

Behavior depends on where the focus was previous to the click.
Obviously, what we expect is to have the first picture menu on all screens.
For your questions:
1. Build 26100.ge_release.240331-1435
2. Enhance taskbar ON.
Thank you,
Mario