2559254 - How to fix backoffice empty Explorer Tree issue in cluster environment

INFO  [hybrisHTTP3] [DefaultCockpitConfigurationService] No data for media.
ERROR [hybrisHTTP3] [DefaultCockpitConfigurationService] could not load cockpit configuration root element; creating new one
com.hybris.cockpitng.core.config.CockpitConfigurationException: Premature end of file.
 at com.hybris.cockpitng.core.config.impl.DefaultCockpitConfigurationService.loadRootConfig(DefaultCockpitConfigurationService.java:932)
 at com.hybris.cockpitng.core.config.impl.DefaultCockpitConfigurationService.loadRootConfiguration(DefaultCockpitConfigurationService.java:318)
 at com.hybris.cockpitng.core.config.impl.DefaultCockpitConfigurationService.loadRootConfiguration(DefaultCockpitConfigurationService.java:303)
 at com.hybris.backoffice.cockpitng.modules.BackofficeLibraryHandler.afterDeployReverseOrder(BackofficeLibraryHandler.java:175)
 at com.hybris.cockpitng.modules.core.impl.CockpitModuleComponentDefinitionService.doAfterDeployReverseOrder(CockpitModuleComponentDefinitionService.java:203)
 at com.hybris.cockpitng.modules.core.impl.CockpitModuleComponentDefinitionService.fetchInModules(CockpitModuleComponentDefinitionService.java:169)
 at com.hybris.cockpitng.modules.core.impl.CockpitModuleComponentDefinitionService.fetchExternalWidgets(CockpitModuleComponentDefinitionService.java:108)
 at com.hybris.cockpitng.modules.core.impl.CockpitModuleComponentDefinitionService.reloadDefinitions(CockpitModuleComponentDefinitionService.java:74)
 at com.hybris.cockpitng.core.impl.DefaultCockpitComponentDefinitionService.assureDefinitionsLoaded(DefaultCockpitComponentDefinitionService.java:167)
 at com.hybris.cockpitng.core.impl.DefaultCockpitComponentDefinitionService.getAllComponentDefinitions(DefaultCockpitComponentDefinitionService.java:111)
 at com.hybris.cockpitng.util.labels.CockpitComponentDefinitionLabelLocator.locate(CockpitComponentDefinitionLabelLocator.java:81)
 at org.zkoss.util.resource.impl.LabelLoaderImpl.loadLabels(LabelLoaderImpl.java:265)
......

Caused by: org.xml.sax.SAXParseException; Premature end of file.
 at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
 at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)

......