Earth-Prime variants unlocked?

Last night I opened the SotM app (iPad) for the first time in a few weeks, asked for a random setup, and was surprised to have a couple of Earth-Prime variants show up in my random lineup, even though I hadn’t unlocked them. Hmmm…

Oddly, when I open the SoEP app, none of the variants are unlocked there (even though I’m pretty sure I unlocked one or two of them; maybe by playing in the SotM app?). Very strange that one is fully unlocked but the other isn’t.

Either way, I need to get back in and work on unlocking them properly!

All EP variants are unlocked automatically in SOTM and vice versa. You can only complete the unlock challenge for a hero in their own app.