diff --git a/app/models/journal.rb b/app/models/journal.rb
index e4a7dcf9a..bea0a03c6 100644
--- a/app/models/journal.rb
+++ b/app/models/journal.rb
@@ -44,7 +44,7 @@ class Journal < ApplicationRecord
   belongs_to :reply_journal, class_name: 'Journal', foreign_key: :reply_id, optional: true
   has_many :journal_details, :dependent => :delete_all
   has_many :attachments, as: :container, dependent: :destroy
-  has_many :first_ten_children_journals, -> { order(created_on: :asc).limit(10)}, class_name: 'Journal', foreign_key: :parent_id
+  has_many :first_ten_children_journals, -> { order(created_on: :asc).limit(20)}, class_name: 'Journal', foreign_key: :parent_id
   has_many :children_journals, class_name: 'Journal', foreign_key: :parent_id, dependent: :destroy
 
   scope :journal_includes, ->{includes(:user, :journal_details, :attachments)}
diff --git a/app/services/api/v1/issues/journals/list_service.rb b/app/services/api/v1/issues/journals/list_service.rb
index 486fa5d3f..6d54e3b47 100644
--- a/app/services/api/v1/issues/journals/list_service.rb
+++ b/app/services/api/v1/issues/journals/list_service.rb
@@ -48,7 +48,7 @@ class Api::V1::Issues::Journals::ListService < ApplicationService
       @queried_journals = @queried_journals.where(notes: nil)
     end
 
-    @queried_journals = @queried_journals.includes(:journal_details, :user, :attachments, first_ten_children_journals: [:parent_journal, :reply_journal])
+    @queried_journals = @queried_journals.includes(:journal_details, :user, :attachments, :children_journals)
     @queried_journals = @queried_journals.reorder("journals.#{sort_by} #{sort_direction}").distinct
 
     @queried_journals
diff --git a/app/views/project_rank/_detail.json.jbuilder b/app/views/project_rank/_detail.json.jbuilder
index d5b4b016b..c083033e1 100644
--- a/app/views/project_rank/_detail.json.jbuilder
+++ b/app/views/project_rank/_detail.json.jbuilder
@@ -3,8 +3,8 @@ owner_common = $redis_cache.hgetall("v2-owner-common:#{project_common["owner_id"
 json.id item[0]
 json.score item[1]
 json.name project_common["name"]
-if project_common['identifier'].include?("/")
-  json.identifier project_common["identifier"].split('/')[1]
+if project_common['identifier'].to_s.include?("/")
+  json.identifier project_common["identifier"].to_s.split('/')[1]
   json.owner do 
     json.id nil
     json.type 'User'