So you can try to "deny" all check .After that you need to select the section /pages which you need to allow for that user.

Check User and GroupsFor 6.5 version referhttps://experienceleague.adobe.com/docs/experience-manager-65/administering/security/security.html?lang=en#:~:text=Permissions%20give%20users%20and%20groups,clearing%20the%20appropriate%20check%20boxes.  

Check your settings.xml in .m2 folder .

A web tier config pipeline Deploys HTTPD/Dispatcher configurations Refer experienceleague.adobe.com/docs/experience-manager-cloud-service/content/implementing/using-cloud-manager/cicd-pipelines/configuring-production-pipelines.html?lang=en#web-tier-config  Thanks

Any changes in dispatcher module can only be deployed via pipeline in AEM as a cloud service .

Can you share the error log.

If there is no content rollout and content sync then create simple structure like/content-- /brand_name     ----/us              --en    ----/in            --en Thanks 

Kindly refer https://github.com/thingsboard/thingsboard/issues/1335 

Does your propertyName contain any special character?names must contain only Latin characters, numerical digits and underscore “_” as special character.

Is there any rewrite rules in place?Check network calls on click of link from external site.Share the error log if possible.