update

platform/viewer/src/connectedComponents/ConnectedStudyBrowser.js

@@ -61,7 +61,20 @@ const mapDispatchToProps = (dispatch, ownProps) => {
             });
           };
 
-          displaySet = displaySet.getSourceDisplaySet(ownProps.studyMetadata, true, onDisplaySetLoadFailureHandler);
+          const {referencedDisplaySet, activatedLabelmapPromise} = displaySet.getSourceDisplaySet(
+            ownProps.studyMetadata,
+            true,
+            onDisplaySetLoadFailureHandler
+          );
+          displaySet = referencedDisplaySet;
+
+          activatedLabelmapPromise.then((activatedLabelmapIndex) => {
+            const selectionFired = new CustomEvent("extensiondicomsegmentationsegselected", {
+              "detail": {"activatedLabelmapIndex":activatedLabelmapIndex}
+            });
+            document.dispatchEvent(selectionFired);
+          });
+
         } else {
           displaySet = displaySet.getSourceDisplaySet(ownProps.studyMetadata);
         }

platform/viewer/src/connectedComponents/Viewer.js

@@ -433,12 +433,12 @@ const _checkForSeriesInconsistencesWarnings = async function (displaySet, studie
       return warningsList;
     }
 
-    const sourceDisplaySet = displaySet.getSourceDisplaySet(studies, false);
-    if (!sourceDisplaySet) {
+    const { referencedDisplaySet } = displaySet.getSourceDisplaySet(studies, false);
+    if (!referencedDisplaySet) {
       return warningsList;
     }
 
-    const imageIds = sourceDisplaySet.images.map(image => image.getImageId());
+    const imageIds = referencedDisplaySet.images.map(image => image.getImageId());
     if (!imageIds || imageIds.length === 0) {
       return warningsList;
     }

platform/viewer/src/connectedComponents/ViewerMain.js

@@ -153,7 +153,13 @@ class ViewerMain extends Component {
           });
         };
 
-        displaySet = displaySet.getSourceDisplaySet(this.props.studies, true, onDisplaySetLoadFailureHandler);
+        const {referencedDisplaySet} = displaySet.getSourceDisplaySet(
+          this.props.studies,
+          true,
+          onDisplaySetLoadFailureHandler
+        );
+        displaySet = referencedDisplaySet;
+
       } else {
         displaySet = displaySet.getSourceDisplaySet(this.props.studies);
       }