Logged out, app was up to date, restarted my phone, logged back in and now there's no Fantastic Five at all. Checked the features to turn it on, it's not even there anymore. Only the "lives full" is there to check.
Here's a screenshot. This is what the Fantastic Five has looked like for quite a while. Like I said, I cleaned out my cache and force stopped to no avail. I'm about to give up on it.