diff --git a/Dnn.CommunityForums/DnnCommunityForums.dnn b/Dnn.CommunityForums/DnnCommunityForums.dnn
index 9f04cea8..f5782761 100644
--- a/Dnn.CommunityForums/DnnCommunityForums.dnn
+++ b/Dnn.CommunityForums/DnnCommunityForums.dnn
@@ -424,10 +424,15 @@
                 <name>09.00.00.SqlDataProvider</name>
                 <version>09.00.00</version>
             </script>
+            <script type="Install">
+                <path>sql</path>
+                <name>09.01.00.SqlDataProvider</name>
+                <version>09.01.00</version>
+            </script>
             <script type="UnInstall">
               <path>sql</path>
               <name>Uninstall.SqlDataProvider</name>
-              <version>09.00.00</version>
+              <version>09.01.00</version>
             </script>
           </scripts>
         </component>
diff --git a/Dnn.CommunityForums/sql/09.01.00.SqlDataProvider b/Dnn.CommunityForums/sql/09.01.00.SqlDataProvider
new file mode 100644
index 00000000..a265def0
--- /dev/null
+++ b/Dnn.CommunityForums/sql/09.01.00.SqlDataProvider
@@ -0,0 +1,116 @@
+SET NOCOUNT ON 
+GO
+
+/* issues 1434 - begin - duplicated forum and topic tracking */
+
+/* Drop indexes for forum and topic tracking tables to avoid duplicates -- note index prefix name change from idx_ to IX_ */
+IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Forums_Tracking') AND name = N'idx_{objectQualifier}activeforums_Forums_Tracking_Opt1')
+DROP INDEX [idx_{objectQualifier}activeforums_Forums_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Forums_Tracking 
+GO
+IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Forums_Tracking') AND name = N'IX_{objectQualifier}activeforums_Forums_Tracking_Opt1')
+DROP INDEX [IX_{objectQualifier}activeforums_Forums_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Forums_Tracking 
+GO
+
+IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Topics_Tracking') AND name = N'idx_{objectQualifier}activeforums_Topics_Tracking_Opt1')
+DROP INDEX [idx_{objectQualifier}activeforums_Topics_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Topics_Tracking 
+GO
+IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Topics_Tracking') AND name = N'IX_{objectQualifier}activeforums_Topics_Tracking_Opt1')
+DROP INDEX [IX_{objectQualifier}activeforums_Topics_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Topics_Tracking 
+GO
+
+/* delete any duplicated tracking records for user/forum, keeping latest one */
+WITH ft_max AS (
+SELECT ft.ForumId, ft.UserId, MAX(TrackingId) AS TrackingId 
+FROM {databaseOwner}[{objectQualifier}activeforums_Forums_Tracking] ft 
+GROUP BY ft.ForumId, ft.UserId
+)
+, ft_multiples AS (
+SELECT ft.ForumId, ft.UserId, ft_max.TrackingId
+FROM {databaseOwner}[{objectQualifier}activeforums_Forums_Tracking] ft 
+LEFT OUTER JOIN ft_max
+ON ft_max.ForumId = ft.ForumId
+AND ft_max.UserId = ft.UserId
+GROUP BY ft.UserId, ft.ForumId, ft_max.TrackingId
+HAVING COUNT(*) > 1
+)
+
+DELETE ft 
+FROM {databaseOwner}[{objectQualifier}activeforums_Forums_Tracking] ft 
+INNER JOIN ft_max
+ON ft_max.ForumId = ft.ForumId
+AND ft_max.UserId = ft.UserId
+INNER JOIN ft_multiples
+ON ft_multiples.ForumId = ft_max.ForumId
+AND ft_multiples.UserId = ft_max.UserId
+
+WHERE ft.ForumId = ft_max.ForumId
+AND ft.UserId = ft_max.UserId
+AND ft.TrackingId < ft_max.TrackingId
+GO
+
+/* delete topic tracking records from incorrect (moved) forums */
+
+DELETE tt 
+FROM {databaseOwner}[{objectQualifier}activeforums_Topics_Tracking] tt 
+LEFT OUTER JOIN {databaseOwner}[{objectQualifier}activeforums_ForumTopics] ft
+ON ft.TopicId = tt.TopicId
+AND ft.ForumId = tt.ForumId
+WHERE ft.TopicId IS NULL
+GO
+
+/* delete any duplicated tracking records for user/topic, keeping latest one */
+WITH tt_max AS (
+SELECT tt.TopicId, tt.UserId, MAX(TrackingId) AS TrackingId 
+FROM {databaseOwner}[{objectQualifier}activeforums_Topics_Tracking] tt 
+GROUP BY tt.TopicId, tt.UserId
+)
+, tt_multiples AS (
+SELECT tt.TopicId, tt.UserId, tt_max.TrackingId
+FROM {databaseOwner}[{objectQualifier}activeforums_Topics_Tracking] tt 
+LEFT OUTER JOIN tt_max
+ON tt_max.TopicId = tt.TopicId
+AND tt_max.UserId = tt.UserId
+GROUP BY tt.UserId, tt.TopicId, tt_max.TrackingId
+HAVING COUNT(*) > 1
+)
+
+DELETE tt 
+FROM {databaseOwner}[{objectQualifier}activeforums_Topics_Tracking] tt 
+INNER JOIN tt_max
+ON tt_max.TopicId = tt.TopicId
+AND tt_max.UserId = tt.UserId
+INNER JOIN tt_multiples
+ON tt_multiples.TopicId = tt_max.TopicId
+AND tt_multiples.UserId = tt_max.UserId
+
+WHERE tt.TopicId = tt_max.TopicId
+AND tt.UserId = tt_max.UserId
+AND tt.TrackingId < tt_max.TrackingId
+GO
+
+/* create new indexes */
+
+CREATE UNIQUE NONCLUSTERED INDEX [IX_{objectQualifier}activeforums_Topics_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Topics_Tracking
+(
+	[UserId] ASC,
+	[TopicId] ASC
+)
+INCLUDE ( 
+[LastReplyId]
+) WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) 
+GO
+
+CREATE UNIQUE NONCLUSTERED INDEX [IX_{objectQualifier}activeforums_Forums_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Forums_Tracking
+(
+	[UserId] ASC,
+	[ForumId] ASC
+)
+INCLUDE ( 
+[MaxTopicRead],
+[MaxReplyRead]
+) WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) 
+GO
+
+/* issues 1434 - end - duplicated forum and topic tracking */
+
+/* ---------------- */
diff --git a/Dnn.CommunityForums/sql/Uninstall.SqlDataProvider b/Dnn.CommunityForums/sql/Uninstall.SqlDataProvider
index 4bafb943..49582dac 100644
--- a/Dnn.CommunityForums/sql/Uninstall.SqlDataProvider
+++ b/Dnn.CommunityForums/sql/Uninstall.SqlDataProvider
@@ -480,6 +480,9 @@ GO
 IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Topics_Tracking') AND name = N'idx_{objectQualifier}activeforums_Topics_Tracking_Opt1')
 DROP INDEX [idx_{objectQualifier}activeforums_Topics_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Topics_Tracking 
 GO
+IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Topics_Tracking') AND name = N'IX_{objectQualifier}activeforums_Topics_Tracking_Opt1')
+DROP INDEX [IX_{objectQualifier}activeforums_Topics_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Topics_Tracking 
+GO
 IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Replies') AND name = N'idx_{objectQualifier}activeforums_Replies_Opt1')
 DROP INDEX [idx_{objectQualifier}activeforums_Replies_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Replies 
 GO
@@ -504,6 +507,9 @@ GO
 IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Forums_Tracking') AND name = N'idx_{objectQualifier}activeforums_Forums_Tracking_Opt1')
 DROP INDEX [idx_{objectQualifier}activeforums_Forums_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Forums_Tracking 
 GO
+IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_Forums_Tracking') AND name = N'IX_{objectQualifier}activeforums_Forums_Tracking_Opt1')
+DROP INDEX [IX_{objectQualifier}activeforums_Forums_Tracking_Opt1] ON {databaseOwner}{objectQualifier}activeforums_Forums_Tracking 
+GO
 IF  EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'{databaseOwner}{objectQualifier}activeforums_UserProfiles') AND name = N'idx_{objectQualifier}activeforums_UserProfiles_Opt1')
 DROP INDEX [idx_{objectQualifier}activeforums_UserProfiles_Opt1] ON {databaseOwner}{objectQualifier}activeforums_UserProfiles 
 GO