Into The Future Bug Thread

I noticed that when the new family went back and forth from the future...strange items appeared in their item menu (not family items). Two members of the three members family came back with 6 copies of volume one of charisma skill books, so in total 12 books. This is a new family, so this issue is a new one to me...still seeing if i get tips still (gotta level the guitar up high enough to use "play for tips" interaction..

UPDATED: Someone else mentioned this bug apparently in my page talking about it in one of my games..apparently it is kinda random but it does happen, someone also mentioned that items also disappear out of your family inventory (they were talking about some furniture they were gifted due to their fame level, and some regular items from the backpack, so this must be a somewhat common bug unfortunately..)