diff --git a/app/controllers/api/pm/issues_controller.rb b/app/controllers/api/pm/issues_controller.rb
index 3c33ab02d..7c527e6cc 100644
--- a/app/controllers/api/pm/issues_controller.rb
+++ b/app/controllers/api/pm/issues_controller.rb
@@ -254,14 +254,15 @@ class Api::Pm::IssuesController < Api::Pm::BaseController
       full_link_issues_ids = full_link_issues_ids | compare_link_issues_ids
       i = compare_link_issues_ids.count
     end
-    exclude_issues_array = Issue.where(id: full_link_issues_ids).where.not(root_id: nil).pluck(:id, :root_id)
-    exclude_issues_array.each do |i| 
-      full_link_issues_ids = full_link_issues_ids - [i[0]] if full_link_issues_ids.include?(i[1]) 
+    exclude_issues_ids = []
+    exclude_issues = Issue.where(id: full_link_issues_ids).where.not(root_id: nil)
+    exclude_issues.each do |i| 
+      exclude_issues_ids << i.id if i.pm_issue_type == 1 && full_link_issues_ids.include?(i.root_id)
     end
-
-    @requirement_issues = Issue.where(id:full_link_issues_ids, pm_issue_type:1).pm_includes
-    @task_issues = Issue.where(id:full_link_issues_ids, pm_issue_type:2).pm_includes
-    @bug_issues = Issue.where(id:full_link_issues_ids, pm_issue_type:3).pm_includes
+    full_link_issues_ids = full_link_issues_ids - exclude_issues_ids
+    @requirement_issues = Issue.where(id:full_link_issues_ids, pm_issue_type:1, root_id: nil).pm_includes
+    @task_issues = Issue.where(id:full_link_issues_ids, pm_issue_type:2, root_id: nil).pm_includes
+    @bug_issues = Issue.where(id:full_link_issues_ids, pm_issue_type:3, root_id: nil).pm_includes
   end
 
   private