Redmine上で動画ファイル（mp4）の再生が出来ない

[shin]

お世話になっております。

WindowsからLinuxへRedmineを移行しておりどうしても分からないことがあり投稿します。

bitnami_redmine-3.4.1-0を使用しLinuxへRedmineの構築をおこないWindows側のデータをマイグレーションしています。

◆環境

　Ubuntu14.04

  Redmine version                3.3.1.stable
  Ruby version                   2.1.10-p492 (2016-04-01) [x86_64-linux]
  Rails version                  4.2.7.1
  Environment                    production
  Database adapter               Mysql2

◆質問事項

動画再生プラグイン（redmine_videojs_plugin）をインストールして添付＜video.png＞のように

インストールはされているのですが動作の再生が出来ません。

ログは、/log/production.logを確認しているのですが解決方法が分からず困っています。

動作再生のログは以下になりますがwarningとして Format problemと出力されているのが気になり

mime_type.rbに、'video/mp4'=> 'mp4',を追加して再起動させましたが現象は変わりません。

1.prodcution.log以外で確認するログ情報が他にありましたら教えていただけないでしょうか

2.以下ログ抜粋で動画再生できない理由が分かれば教えていただけないでしょうか

◆実施したこと

lib/redmine/mime_type.rbに、'video/mp4'=> 'mp4',を追加し再起動

◆redmine_videojs_plugin導入方法

1.plugin folderにredmine_videojs_pluginのzipファイルを展開

2.rake redmine:plugins:migrate RAILS_ENV=production

3.redmineを再起動

---production.log抜粋-----

I, [2017-10-18T11:53:31.177504 #28972]  INFO -- : Redirected to http://localhost:10180/redmine/projects/xxxxxx/wiki/%E3%83%86%E3%82%B9%E3%83%88

I, [2017-10-18T11:53:31.177809 #28972]  INFO -- : Completed 302 Found in 155ms (ActiveRecord: 104.0ms)

I, [2017-10-18T11:53:31.188327 #28972]  INFO -- : Started GET "/redmine/projects/xxxxxx/wiki/%e3%83%86%e3%82%b9%e3%83%88" for 10.0.2.2 at 2017-10-18 11:53:31 +0900

I, [2017-10-18T11:53:31.189938 #28972]  INFO -- : Processing by WikiController#show as HTML

I, [2017-10-18T11:53:31.190031 #28972]  INFO -- :   Parameters: {"project_id"=>"xxxxxx", "id"=>"xxxxx"}

I, [2017-10-18T11:53:31.195945 #28972]  INFO -- :   Current user: admin (id=1)

I, [2017-10-18T11:53:31.223391 #28972]  INFO -- :   Rendered wiki/_content.html.erb (5.5ms)

I, [2017-10-18T11:53:31.234681 #28972]  INFO -- :   Rendered attachments/_links.html.erb (4.2ms)

I, [2017-10-18T11:53:31.237088 #28972]  INFO -- :   Rendered attachments/_form.html.erb (1.6ms)

I, [2017-10-18T11:53:31.263186 #28972]  INFO -- :   Rendered wiki/_sidebar.html.erb (24.5ms)

I, [2017-10-18T11:53:31.263320 #28972]  INFO -- :   Rendered wiki/show.html.erb within layouts/base (50.3ms)

I, [2017-10-18T11:53:31.266947 #28972]  INFO -- :   Rendered plugins/redmine_code_review/app/views/code_review/_html_header.html.erb (1.9ms)

I, [2017-10-18T11:53:31.273536 #28972]  INFO -- :   Rendered plugins/redmine_backlogs/app/views/hooks/_rb_include_scripts.html.erb (1.1ms)

I, [2017-10-18T11:53:31.309063 #28972]  INFO -- :   Rendered plugins/redmine_code_review/app/views/code_review/_body_bottom.html.erb (1.0ms)

I, [2017-10-18T11:53:31.309290 #28972]  INFO -- : Completed 200 OK in 119ms (Views: 86.7ms | ActiveRecord: 13.2ms)

I, [2017-10-18T11:53:31.356683 #28972]  INFO -- : Started GET "/redmine/rb/server_variables.js" for 10.0.2.2 at 2017-10-18 11:53:31 +0900

I, [2017-10-18T11:53:31.358465 #28972]  INFO -- : Processing by RbServerVariablesController#index as JS

I, [2017-10-18T11:53:31.365231 #28972]  INFO -- :   Current user: admin (id=1)

W, [2017-10-18T11:53:31.366128 #28972]  WARN -- : Format problem #<ActionController::MimeResponds::Collector:0x007fcd0781dc70>

I, [2017-10-18T11:53:31.373002 #28972]  INFO -- :   Rendered plugins/redmine_backlogs/app/views/rb_server_variables/show.js.erb (5.9ms)

I, [2017-10-18T11:53:31.373333 #28972]  INFO -- : Completed 200 OK in 15ms (Views: 6.8ms | ActiveRecord: 0.9ms)

I, [2017-10-18T11:53:31.433537 #28972]  INFO -- : Started GET "/redmine/projects/xxxxx/wiki/none" for 10.0.2.2 at 2017-10-18 11:53:31 +0900

I, [2017-10-18T11:53:31.435036 #28972]  INFO -- : Processing by WikiController#show as HTML

I, [2017-10-18T11:53:31.435126 #28972]  INFO -- :   Parameters: {"project_id"=>"xxxxxx", "id"=>"none"}

I, [2017-10-18T11:53:31.443922 #28972]  INFO -- :   Current user: admin (id=1)

I, [2017-10-18T11:53:31.549851 #28972]  INFO -- :   Rendered attachments/_form.html.erb (1.8ms)

I, [2017-10-18T11:53:31.551941 #28972]  INFO -- :   Rendered wiki/edit.html.erb within layouts/base (20.7ms)

I, [2017-10-18T11:53:31.556404 #28972]  INFO -- :   Rendered plugins/redmine_code_review/app/views/code_review/_html_header.html.erb (1.9ms)

I, [2017-10-18T11:53:31.563376 #28972]  INFO -- :   Rendered plugins/redmine_backlogs/app/views/hooks/_rb_include_scripts.html.erb (1.2ms)

I, [2017-10-18T11:53:31.600752 #28972]  INFO -- :   Rendered plugins/redmine_code_review/app/views/code_review/_body_bottom.html.erb (1.0ms)

I, [2017-10-18T11:53:31.600990 #28972]  INFO -- : Completed 200 OK in 166ms (Views: 64.4ms | ActiveRecord: 10.2ms)