While having a explorer play best of one game. When Agatha the vile cauldron came into play I could not click and hold to enlarge to read any text could not select her and when she attacked I could not block her with any of my creatures. So I could click on other cards in my hand on the field and it would work and I could block other attacking creatures but not Agatha.
This was on a Samsung galaxy s23 ultra playing MTG arena.
Everything was fully updated.
I also cannot capture a log on mobile not sure if that's normal or not.