Duplicated system folders (DO11 under Win10)

When I click on "This PC" in the file tree, this is what I see in the lister window (attached).
Below the last hard drive (not shown) my network drives appear as expected.
What is not expected is that, as you can see, the Documents, Music, Pictures, and Videos libraries each appear twice. Actually I don't use any of those libraries (and in fact they are all empty), so for me it would be better if they didn't appear at all, but appearing twice is particularly distracting. I do use the Downloads folder, although I don't really need it to appear under "This PC" since I already have that folder in my favorites. Both download folders that appear in this list appear to be the same folder (or they have the same contents). What is causing these folders to appear twice, and do I have any control over whether they appear at all?

Thanks in advance for any suggestions.
~Paul

Are you seeing that on 11.19?

It was 11.19. However I just tried an uninstall/reinstall, and this problem (and the other one in another thread) just disappeared.