Can you post a screenshot of your taskbar with the option disabled please as we have a few reports of this so believe there is something about whatever is on the taskbar thats causing it to appear blank. Also how many monitors do you have?
Your suspicion that the issue is connected to multi-screen setup was correct!
I have three screens and made tests of such configurations:
(1) three screens: middle screen primary, side screens extended 2-1-3
(2) two screens: left screen primary, right screen extended 1-2
(3) one seamless desktop of three screens: nVidia Surround 5760x1200
(4) one screen, side screens disconnected
Results:
(1) three screens: 1 primary + 2 extended:
- activating Enhanced taskbar switch (On)...
- case 1: taskbar icons positioned in the center...
Start11 Configuration window disappears (crash?) and nothing is changed
openning Star11 Config again after crash...
Enhanced taskbar switch is ON (but function is not working)
position centering option is not visible
Changing anything bewteen Always/Sometimes/Never cause:
taskbar icons disappear and start button positioned to the left
- case 2: taskbar icons positioned to the left...
taskbar icons disappear (see first screenshot)
position centering option is not visible
- deactivating Enhanced taskbar switch (Explorer restart)... taskbar icons visible again
- observed: After restarting Explorer (Enhanced taskbar is ON!)
taskbar icons appear for fraction of a second, then disappear again
(2) two screens: left primary + right extended, same behavior as above (1)
(3) three screens seamless desktop nVidia Surround:
- Taskbar is located on left screen, top (!)
"Taskbar position" is set to "Align Bottom" for primary monitor and secondary monitors
- Start Button custom image works ok
- Taskbar Enhancement works ok
(4) one screen, Start Button & Taskbar Enhanced works ok
Note: In my case the option "Show my taskbar on all displays"
is switched OFF in Windows' Personalization > Taskbar
Let me know if additional tests would be helpful