Hi,   You can apply the rule to your newly created column. As you know, column rules are applied from the top down. Also, they will be combined, but will not overwrite each other.

If you use the latest core component rich text component, you need to enable plugins via the Plugins tab. More details: https://experienceleague.adobe.com/docs/experience-manager-core-components/using/wcm-components/text.html?lang=en

Check https://experienceleague.adobe.com/docs/experience-manager-cloud-service/content/implementing/content-delivery/caching.html?lang=en for finding out about cache control.

Try replicating the issue in a non PROD environment. Also, try to get logs for the live environment and see if you can find something there.

Which AEM version are you using? Also, is there any specific component in which you face the issue?

Thanks @Jagpreet_Singh_ & @kautuk_sahni for the recognition.

https://experienceleague.adobe.com/docs/experience-manager-cloud-service/content/assets/admin/developer-reference-material-apis.html?lang=en is helpful for Asset creation in AEM.

The selectors must be configured as they would be specified in the URL that is as a list of dot-separated strings such as product.extension1. In case this is not empty, the first selector(s) (i.e. the one(s) on the left) in the request URL must match, otherwise, the servlet is not executed.  You nee...

You need to store all buttons data in List and return it via SlingModel Exporter (i.e. CartModel).   Snippet for CartModel public List<ContentCard> getButtons() { return new ArrayList<>(buttons); }  Also, ensure you capture all relevant data and store it in buttons.

Checkout https://experienceleague.adobe.com/docs/experience-manager-65/administering/operations/backup-and-restore.html?lang=en link for Backup.