Finding a game in my library

Hey all, I'm having a problem trying to find games in the my library tab.

For instance, I know that I have owned Ace Combat 7. Honestly can't remember whether it was a monthly game or a full purchase. doesn't show up in my library under any of the tabs (installed, your collection, PlayStation Plus).

When I look for it in the store it says that I already own it and all I need to do is download it.

Yet when I do a search for "ace" in my game library it doesn't seem to show up.

Any help would be appreciated.