修复

app/services/api/v1/issues/journals/create_service.rb

@@ -67,7 +67,7 @@ class Api::V1::Issues::Journals::CreateService < ApplicationService
 
   def build_atme_participants
     @atme_receivers.each do |receiver|
-      @created_issue.issue_participants.new({participant_type: "atme", participant_id: receiver.id})
+      @issue.issue_participants.new({participant_type: "atme", participant_id: receiver.id})
     end
   end
 end

app/services/api/v1/issues/journals/update_service.rb

@@ -48,7 +48,7 @@ class Api::V1::Issues::Journals::UpdateService < ApplicationService
 
   def build_atme_participants
     @atme_receivers.each do |receiver|
-      @created_issue.issue_participants.new({participant_type: "atme", participant_id: receiver.id})
+      @issue.issue_participants.new({participant_type: "atme", participant_id: receiver.id})
     end
   end