Help Can't enable Google Photos backup since replacing microSD card

[me10lee83]

I just replaced my microSD card in order to get more memory but ever since then I haven't been able to enable backup in the Google Photos app. I've restarted the phone but same thing. Do I need to format the microSD card in the phone first? I go in the photos, Backup & Sync, turn it on, but it never seems to recognize any of the selections I make (selecting which account, wi-fi or cellular data, photo size, etc). I've uninstalled and reinstalled the Photos app, but no difference.

 

[me10lee83]

Update: I formatted the card, backup settings haven't changed but all appears to be working at least.