Windows GUI doesn't work on secondary monitor

What is the name of the domain?

example.com

What is the issue you’re encountering

If you have the taskbar in a secondary monitor, GUI doesn’t appear when you click the systray icon

What steps have you taken to resolve the issue?

To workaround, move the taskbar back to the main monitor.

What are the steps to reproduce the issue?

Move the taskbar to secondary monitor. Click the systray icon. Nothing happens.

I see the icon when display is set to ‘Duplicate display’, not otherwise.