If you're seeing the error message "No options were provided for this parameter" in the Edit Widget menu, it usually means that there's an issue with the parameters that you're trying to pass to the widget. One possible cause of this issue is that the parameter you're trying to pass doesn't have any options defined. "This could happen if you're trying to use a variable or data source that hasn't been properly configured or initialized." If you're working with a database like Realm, you may need to check that your database queries are returning the data you expect, this is my case. Once you've verified that your data sources and variables are set up correctly in your INExtension file, you should be able to pass valid options to your widget and resolve the "No options were provided for this parameter" error.

What a weird and annoying issue this is, wasted a day and nothing seem to work.