Talk:Raid Battle/@comment-121.54.42.230-20150712151538/@comment-121.54.42.230-20150713045157

Probably. http://appinvasion.com/threads/bugs-bugs-everywhere.352154/
 * Contribution system negatively affects the multipliers for anyone who doesn't do any damage to the boss (e.g., barely any materials or few Medals/no Medals)