devtrackers.gg
What a f**king buggy mess. All of the voice bubbles have incoherent text/placeholders for the bosses and the loading bar. Also, in Heroic none of the characters are showing during deck selection. They have done tons and tons of releases. This is a complete joke.
EDIT: Now, my character picture is missing in game. It's just gray. How does this get out the door???
If you force quit the app (open up multitasking > swipe up to remove it from multitasking) and then re-launch, the issue should be resolved.
Essentially, what is happening is that it's a difference in the data versions due to things still being rolled out globally. The team is working to rectify this in the future.