I just experienced this bug and wanted to report it. I booted up my end game save and started playing. After about 20 minutes, I went to check my Game History and noticed I was missing a lot of games. As far as I could tell, it was mostly just MMOs and games that I had developed a sequel for. Upon reloading to a recent (5 minutes) Auto Save, all my games are listed again. I reloaded the original save file to see if I could reproduce the bug but was unable to.
when you do a sequel on a game the game you did a sequel on disappear for some resson so dont worry this happends to EVERYONE. and sorry for late respnonse.