hello AlanHodgson1
try this and let me know if it helps
Press Windows key + R on your keyboard to open the Run window.
Type %localappdata%\Microsoft\OneDrive\onedrive.exe /reset and click OK.
In the notification area of your taskbar, the OneDrive icon will disappear and re-appears after 1-2 minutes. If it doesn't re-appear, open the Run window again and type %localappdata%\Microsoft\OneDrive\onedrive.exe.