Hey @mlloyd360, thanks for reporting the issue. Hopefully @wim’s suggestion helps. Would you mind listing the Grasshopper plugins that you are using? I’d like to see if it is something we can take care of on our end, or at least notify the plugin author(s) that they may need to update their plugin.
But another issue (connected???): I have lost the drop-down variants of Rhino basic functions (icons in vertical left panel) So for example, I can create a point, but not multiple points. See attatched screenshot - all the little grey triangles bottom right of applicable icons have gone!