We are also facing the same issue, where we are not able to see page properties on AEM 6.3. In the log, we are getting the below error. org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Uncaught SlingExceptionjava.lang.NullPointerException: null As per the suggested solution here, We have deleted subfolders under /var/clientlibs & /var/classes, Then recompiled all jsp files using the link http://localhost:4502/system/console/slingjspIt's working fine now, We are able to see page pr...