Summary:
In the "Uploaded via Mobile" tab of Explore, the author isn't shown for some pictures. Interestingly, after you scroll down a lot and then go back up to the top, the author isn't shown for ALL pictures.
In Media Details View, the author field is empty, too.
This does not happen for Featured images at all.


Steps to reproduce:
Go to Explore then Uploaded via Mobile tab
Device and Android version:
Samsung Galaxy S9 Android 8.1
Commons app version:
Play Store alpha (current master)