diff --git a/extensions/cornerstone-dicom-seg/src/commandsModule.ts b/extensions/cornerstone-dicom-seg/src/commandsModule.ts
index 36e5cf045..cde160b19 100644
--- a/extensions/cornerstone-dicom-seg/src/commandsModule.ts
+++ b/extensions/cornerstone-dicom-seg/src/commandsModule.ts
@@ -220,7 +220,7 @@ const commandsModule = ({
       }
 
       const { label } = segmentation;
-      const defaultDataSource = dataSource ?? extensionManager.getActiveDataSource();
+      const defaultDataSource = dataSource ?? extensionManager.getActiveDataSource()[0];
 
       const {
         value: reportName,
@@ -251,6 +251,11 @@ const commandsModule = ({
 
           const { dataset: naturalizedReport } = generatedData;
 
+          // DCMJS assigns a dummy study id during creation, and this can cause problems, so clearing it out
+          if (naturalizedReport.StudyID === 'No Study ID') {
+            naturalizedReport.StudyID = '';
+          }
+
           await selectedDataSourceConfig.store.dicom(naturalizedReport);
 
           // add the information for where we stored it to the instance as well
diff --git a/extensions/default/src/DicomWebProxyDataSource/index.ts b/extensions/default/src/DicomWebProxyDataSource/index.ts
index 8ab25f9ff..8c83899aa 100644
--- a/extensions/default/src/DicomWebProxyDataSource/index.ts
+++ b/extensions/default/src/DicomWebProxyDataSource/index.ts
@@ -52,7 +52,7 @@ function createDicomWebProxyApi(dicomWebProxyConfig, servicesManager: AppTypes.S
       },
     },
     store: {
-      dicom: (...args) => dicomWebDelegate.store(...args),
+      dicom: (...args) => dicomWebDelegate.store.dicom(...args),
     },
     deleteStudyMetadataPromise: (...args) => dicomWebDelegate.deleteStudyMetadataPromise(...args),
     getImageIdsForDisplaySet: (...args) => dicomWebDelegate.getImageIdsForDisplaySet(...args),