What is DesktopWindowXamlSource on my taskbar?

[mandango]

I am on Windows 10 and since a few days I get a taskbar item name "DesktopWindowXamlSource" which has no action.If I right-click on it and close it, it closes my OneDrive down, which is not what I want.I already reinstalled onedrive and re-linked my account, but the taskbar item always reappears.I used to use onedrive for years, but never had this taskbar item before.How can I get rid of this crappy thing which only fills my taskbar without any use?

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