Context menu items have disappeared

Until today, I was using the right-click on a file to generate a link to onedrive files. Now this option, along with any other sort of share, has just disappeared. I'm not aware that I've made any sort of change on my Windows laptop to cause this and I've read all of the (mostly old) items in the resource centre on this with no luck. Please help!

Which versions of Opus, Windows and OneDrive are you using?

Are the menus still there in other software?