Update your pom to use snapshot version.Refer this link-https://stackoverflow.com/questions/46468457/what-is-the-use-of-snapshot-in-pom-file-aem-cq

Check the console logs.Refer this thread a s well-https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/aem-6-2-too-many-calls-sling-exception/qaq-p/224517

Try using acs scheduler which i mentioned above which will run as scheduled.

While creating the nodes please replace the special characters with _ or -.Refer-https://helpx.adobe.com/experience-manager/6-2/sites/developing/using/reference-materials/javadoc/com/day/cq/commons/jcr/JcrUtil.html

Try doing it programatically -https://dev.to/jerinraj55551/replication-api-in-aem-adobe-experience-manager-405n Also look at acs automatic package replication as well-https://adobe-consulting-services.github.io/acs-aem-commons/features/workflow-processes/content-traversing-replicate-with-options/ind...

I assume you have two publish instances running.Then make 1 publish down and upgrade or do what ever you want to do with that mean time second instance will be up.

use this -http://aemlab.blogspot.com/2019/07/aem-rte-custom-plugins-1.html

please download from here-https://github.com/adobe/aem-core-wcm-components/releases

refer-https://helpx.adobe.com/be_en/experience-manager/kt/sites/using/getting-started-wknd-tutorial-develop/part8.html

then dont add it in page properties rather do it like this- <meta property="og:title" content="${construct it through page title as per your need}"/>What i meant by this is-<meta property="og:title" content="${properties.pageTitle ? properties.pageTitle : properties.jcr:title }"/> In this way you do...