It doesn't show any error messages. It just doesn't apply the picture to the contact.
Discussion
What's your Blitz contact username?
Its my personal minibits wallet. Its also my current lightning address on my Nostr account.
Weird. It shows up for us.

Wait is that the Minibits wallet one?
This is when we go to add your contact Inside of Blitz wallet.
So what I'm seeing is that people that are already on blitz have their picture load. But those who aren't using Blitz and using a different ln address their picture doesn't load.
Update, it is no longer my minibits on my Nostr page. I'm currently having issues with Minibits.