Mobile update broke Russian!
I've been doing Russian from English just fine on my phone for a month now... until I updated the Duolingo app this morning. Now it says it's not supported on mobile!
Is there any way to roll back? Why would it have once been supported but not now?
It may just be an update's bug.
-You can try deleting the app from multitasking and reopen it.
-Log out of your account and log back in.
-Delete the app and download it again.
If there's no improvement, I recommend you write a review about this issue in the app store/play store.