Hmm … I have no idea where iOS is putting the cursor.
After I click “email” and keyboard shows up, I can not see the cursor, start typing and suddenly the cursor appears again.
I may be able to trigger one extra focus event to work around this, not sure.
I don’t notice this when moving between fields on iOS 11.1, just when I first click the field and keyboard first shows up. Will see if there is a workaround.