Thanks Arun,
Now if open and see properties of selected asset (as below), should be able to issue I am talking about.
Able to reproduce issue in 6.4 and 6.4.3 version.
Tried it in 6.3 and not seeing any issue.
In logs (6.4 and 6.4.3) getting below error
javax.jcr.PathNotFoundException: stock:id not found on /content/dam/testcf/test1234/jcr:content/metadata
at org.apache.jackrabbit.oak.jcr.session.NodeImpl$11.perform(NodeImpl.java:635) [org.apache.jackrabbit.oak-jcr:1.8.9]
at org.apache.jackrabbit.oak.jcr.session.NodeImpl$11.perform(NodeImpl.java:628) [org.apache.jackrabbit.oak-jcr:1.8.9]
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.perform(SessionDelegate.java:208) [org.apache.jackrabbit.oak-jcr:1.8.9]
at org.apache.jackrabbit.oak.jcr.session.ItemImpl.perform(ItemImpl.java:112) [org.apache.jackrabbit.oak-jcr:1.8.9]
at org.apache.jackrabbit.oak.jcr.session.NodeImpl.getProperty(NodeImpl.java:628) [org.apache.jackrabbit.oak-jcr:1.8.9]
at com.adobe.granite.asset.core.impl.metadata.xmpjcr.JcrXmpUtils.getProperty(JcrXmpUtils.java:154) [com.adobe.granite.asset.core:2.2.56]
at com.adobe.granite.asset.core.impl.metadata.AssetMetadataImpl.getProperty(AssetMetadataImpl.java:136) [com.adobe.granite.asset.core:2.2.56]
at com.day.cq.dam.core.impl.AssetImpl.getMetadataValue(AssetImpl.java:198) [com.day.cq.dam.cq-dam-core:5.11.330]
at com.day.cq.dam.core.impl.AssetImpl.getMetadataValue(AssetImpl.java:178) [com.day.cq.dam.cq-dam-core:5.11.330]
at com.day.cq.dam.commons.util.StockUtil.isStockAsset(StockUtil.java:53) [com.day.cq.dam.cq-dam-commons:5.11.182]
at org.apache.jsp.libs.dam.cfm.admin.components.v2.contentrenderer.cards.contentfragment.contentfragment_jsp._jspService(contentfragment_jsp.java:2633)
at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) [org.apache.sling.scripting.jsp:2.2.7.B002]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [org.apache.felix.http.servlet-api:1.1.2]
JPG

Content Fragment
