Hi,This issue is fixed with AEM 6.4.4.0. Please see release notes for AEM 6.4 SP4 [1]. Search for NPR-28674 in section : Hotfixes and Feature Packs included in previous Service Packs - 6.4.4.0NPR-28674 - Issue with Metadata Schema Editor while using path Browser to select data. [1]AEM 6.4 Service Pa...