Blackboard has released the following knowledge base article in regards to the mobile apps.
Article Summary: The Blackboard app and Blackboard Instructor app will be unavailable beginning December 26, 2020 at 12:00 AM EST (11:00 PM CST on the 25th) until December 26, 2020 at 4:00 AM EST (3:00 AM CST) for a scheduled maintenance update. Please access Blackboard Learn in a web browser during this four-hour window.
If you have any comments, questions, or concerns, please contact the Campus Support Center at 479-968-0646 or campussupporrt@atu.edu