Desktop items not visible when using external monitor
I use an external monitor (Asus VX279c) with my MacBook Pro.
Issue:
When I have the MacBook connected to the external monitor (via HDMI or Mini DisplayPort), the items (files and folders) on the Desktop disappear.
I use iCloud Drive and have my Desktop and Documents on iCloud (Desktop & Documents Folders ticked in System Preferences) , so my Desktop items should be visible on my Desktop and on iCloud. However, when I have the external monitor connected, I can only see my Desktop items when I log in to iCloud using the browser; I cannot see them on my Mac Desktop or in the Finder.
If I create a new document and save it on the Desktop, as expected I can see it on the Desktop and also on iCloud using the browser, but if I restart the computer, I cannot see the document on the Desktop anymore. It is still on iCloud and I can see it if I log in to iCloud on the browser.
The issue is not present when I am not connected to the external monitor.
I have used the external monitor for more than a year and didn’t experience the issue before. I think the issue started after upgrading to the latest version of Mac OS (Big Sur) a few weeks ago. Or it may have started after I installed Parallels Desktop about a week ago.
Can someone help please?
Thanks
Pedro
MacBook Pro 15″, macOS 10.15