After gathering feedback here and via a Facebook, I have found I am far from the only person affected by a new issue following the latest forced update. This problem occurs when watching videos or accessing the in game ticket system. The screen switches/flickers back and forth between the game and the videos, which continues anywhere from 30 seconds to indefinitely. This prevents players using these devices from collecting gold, earning boosts or restarting things like WOH rounds.
I engaged CS in a discussion on this topic, and their expert solution was to buy a new phone. That is unacceptable, given that these features were working prior to the update, and the issue has been confirmed to affect the Galaxy s9 phone, which is a relatively new phone. I have video taken of the flickering, but any testing done should quickly replicate the issue.