Hello,
Please make sure of the following:
- The Sketchy field is not protected on AnkiHub: How to Manage Protected Fields
- Your Anki is up to date: just download the latest version from apps.ankiweb.net and run the installer (Anki will update automatically)
- Your AnkiHub add-on is up to date: on Anki’s main window, go to Tools > Add-ons > Check for Updates
- Try resetting local changes: How to reset local changes
Let me know if that helps!