Recently upgraded 2 One speakers to 2 Era 300 speakers. The new Era 300 speakers are not available to add as surrounds

I recently upgraded two One speakers used as surrounds in my living room to two Era 300 speakers. The Ones have been factory reset and removed from system. I installed the Era 300 speakers in the same positions as the previous Ones and connected. When I try to add the Era 300s as surrounds they are not an available choice. I can only find other Ones I have in the house as well as my Amp. All updates are complete, app is the most recent, and the Era 300s are not in stereo mode. I've removed Sub and tried to add Era 300s and still nothing. The only thing I haven't done is factory reset the Beam. It doesn't really seem to make sense. Any ideas?