diff --git a/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js b/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
index c31bb08c6f305127c71ea2df2b11c603119e6100..59fa775acfdf492c82d4ba3f9faaf7a28ce23300 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
@@ -2595,7 +2595,7 @@ function ViewTable(props) {
       accessor: header,
       filter: filtertype,
       Filter: filterFn,
-      disableSortBy: doServersideFilter?typeof disableSortBy !== 'undefined' ? disableSortBy : true:false,
+      disableSortBy: doServersideFilter?(typeof disableSortBy !== 'undefined' ? disableSortBy : true):(disableSortBy || false),
       disableFilters: doServersideFilter?typeof disableFilter !== 'undefined' ? disableFilter : true:false,
       //minResizeWidth: 50,
       //*** TO REMOVE - INCOMING CHANGE */
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/list.tabs.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/list.tabs.js
index 40888287921e2e6cdf942b57448db20450c90457..2d86ba533db68ede29739b91719f2fffbfcf0d2e 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/list.tabs.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/list.tabs.js
@@ -77,7 +77,7 @@ class TimelineListTabs extends Component {
     getUnschedulableList () {
         let unschedulableList = [];
         for(let unschedulableSU of this.props.unschedulableList ) {
-            unschedulableSU['summary'] = this.showUnschedulableSummary(unschedulableSU)
+            unschedulableSU['viewSummaryAction'] = this.showUnschedulableSummary(unschedulableSU)
             unschedulableList.push(unschedulableSU)
         }
         return unschedulableList;
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/shared/timeline.constants.js b/SAS/TMSS/frontend/tmss_webapp/src/shared/timeline.constants.js
index db8b7557f15dd63524b5312f6ca186f841b11ab1..0c8bd0f2b0d29e6fe2dba8cc9cbcc15cda51406c 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/shared/timeline.constants.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/shared/timeline.constants.js
@@ -42,8 +42,10 @@ const TimelineConstants = {
     }],
     UNSCEDULABLE_SU_LIST_DEFAULT_COLUMNS: [{
         
-        summary: {
-            name: "View Summary"
+        viewSummaryAction: {
+            name: "View Summary",
+            filter: "none",
+            disableSortBy: true
         },
         status: {
             name:"Status",