Dear Edd,
Good day! Thanks for posting in Microsoft Community. We are happy to help you.
According to your description, I would like to know how long have you set the refinable managed properties. Has it been more than 24 hours?
If so, please share the following information for us to better test.
- Please share the screenshots of these columns (including the entries) and column settings.
- Please share the detailed steps about how you create a Refinable Managed Property.
We look forward to your response. Thanks for your cooperation.
Sincerely,
George | Microsoft Community Moderator