well..i think cz the club または the spot that u made bout something there is the same spot in here talkin bout the same thing in ur spot..so it disappear..cz ファンポップ need one club talkin bout one thing
I think maybe they didn't disappear but maybe あなた used the wrong キーワード または something and now あなた can't find it (it happened to me when I first created the spot for the couple Polivia).