The Folio Producer Service were updated recently. As part of this update, we’re addressing the “spinning wheel during update” error that will occur when the Folio Builder panel is not updated. If you have not already done so, please update your panel to the 1.1.4 version.
Note that updating the panel does not update your authoring tools or remove any content. It keeps the panel in sync with the web client.
If you experience the spinning wheels problem in the Folio Builder panel after you update it, delete and re-create the articles (do not delete the folio). That should fix the problem.
If the problem is still not resolved after updating your panel, please send an email message to DL-digipub-feedback@adobe.com.