Hi @kautuk_sahni ,Issue was fixed. Its due to code merging and categories name for RTE component was not updated to correctly. Thank you Everyone for your inputs!!!kr,sangram

Hi Mukesh,Thanks for your reply.I already checked everything and everything is in place. But still it is not working.Issue is on AEM as cloud.  

We have custom RTE component. We added styles plugin as per https://experienceleague.adobe.com/en/docs/experience-manager-cloud-service/content/implementing/configuring-and-extending/configure-rich-text-editor-plug-ins#activateplugin But still it is coming as empty. It is showing in network request....