Hello, this is Emily.
When you right click on both entries for OneDrive, they are the same folder path, right?
Can you please type regedit in the search on the taskbar to launch Registry Editor, and go to this location:
Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace
Please lookl through all of the sub folders, to see if you have two OneDrive listings (the onedrive value would be shown to you on the right pane)? You want to check all of the sub folders under "Namespace".
If you find two of them, you can right click and delete one of the sub folders.