Steps to replicate the issue (include links if applicable):

• "i got the reading challenge popup, but was unable to click on anything in the popup.  had to force quit and restart, which no longer gave me the popup."

What happens?:
User unable to interact with app. App frozen.

What should have happened instead?:
User should be able to interact with

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Unknown

Other information (browser name/version, screenshots, etc.):
Unknown

Testing Steps

Please test on TestFlight 8.1.1 (6060)

1. Fresh install
2. Trigger announcement on Explore. While announcement is up, background the app
3. Foreground the app. Ensure buttons are still tappable.