diff --git a/app/models/seminar_review.rb b/app/models/seminar_review.rb
index d2106fe..1f98da5 100644
--- a/app/models/seminar_review.rb
+++ b/app/models/seminar_review.rb
@@ -74,13 +74,16 @@ class SeminarReview
   def get_all_seminar_signup_ids(mode = nil)
     if (self.default_topics.include?("seminar_signup_contributes.description") && self.seminar_main.assign_mode == 1) || mode == 1
       final_assign_signup_ids = SeminarSession.where(:id.in=>self.seminar_session_ids).pluck(:seminar_signup_ids).flatten.map{|id| id.to_s} rescue []
-      final_assign_signup_ids + self.seminar_signup_ids - self.remove_seminar_signup_ids
+      result = final_assign_signup_ids + self.seminar_signup_ids - self.remove_seminar_signup_ids
+      result = result.uniq
     else
-      all_seminar_signup_ids
+      result = all_seminar_signup_ids
     end
+    result
   end
   def all_seminar_signup_ids
-    self.seminar_signup_ids - self.remove_seminar_signup_ids + self.default_seminar_signup_ids
+    result = self.seminar_signup_ids - self.remove_seminar_signup_ids + self.default_seminar_signup_ids
+    result.uniq
   end
   def append_default_signup_id(signup_id)
     sid = signup_id.to_s
diff --git a/app/views/admin/seminars/_seminar_signup_dashboard.html.erb b/app/views/admin/seminars/_seminar_signup_dashboard.html.erb
index 4e32378..571a652 100644
--- a/app/views/admin/seminars/_seminar_signup_dashboard.html.erb
+++ b/app/views/admin/seminars/_seminar_signup_dashboard.html.erb
@@ -120,6 +120,11 @@
       }
       function init_func(){
         adjust_height();
+        $("tbody").each(function(i,v){
+          if($(v).find("tr[data-id]").length != 0){
+            $(v).find("tr.blank_tr").css("display","none");
+          }
+        })
         $(".zoom_out_btn").off("click").on("click",function(){
           var parent = $(this).parent();
           var id = parent.data("id");
@@ -246,11 +251,6 @@
         });
       }
       $(document).ready(function(){
-        $("tbody").each(function(i,v){
-          if($(v).find("tr[data-id]").length != 0){
-            $(v).find("tr.blank_tr").css("display","none");
-          }
-        })
         init_func();
       })
       $(window).resize(function(){
diff --git a/app/views/admin/seminars/_seminar_signup_session_dashboard.html.erb b/app/views/admin/seminars/_seminar_signup_session_dashboard.html.erb
index 1327ba4..ea7428c 100644
--- a/app/views/admin/seminars/_seminar_signup_session_dashboard.html.erb
+++ b/app/views/admin/seminars/_seminar_signup_session_dashboard.html.erb
@@ -129,6 +129,11 @@
       }
       function init_func(){
         adjust_height();
+        $("tbody").each(function(i,v){
+          if($(v).find("tr[data-id]").length != 0){
+            $(v).find("tr.blank_tr").css("display","none");
+          }
+        })
         $(".zoom_out_btn").off("click").on("click",function(){
           var parent = $(this).parent();
           var session_id = parent.data("id");
@@ -233,11 +238,6 @@
         });
       }
       $(document).ready(function(){
-        $("tbody").each(function(i,v){
-          if($(v).find("tr[data-id]").length != 0){
-            $(v).find("tr.blank_tr").css("display","none");
-          }
-        })
         init_func();
       })
       $(window).resize(function(){