#399

backend/app/services/post_import_previewer.rb

@@ -487,6 +487,8 @@ class PostImportPreviewer
   end
 
   def parse_video_ms attributes, errors
+    return nil unless attributes['tags'].to_s.split.include?('動画')
+
     video_ms = attributes['video_ms']
     if video_ms.present?
       value = Integer(video_ms, exception: false)