Using Outlook for Android for personal email and calendar management
Hi Denis Pang and Kenneth Cherisol,
Thanks for your posting here, if you tried these steps but issue persists, you may check if you have the sufficient storage space, please free up more space on your Android device and see the outcome.
In addition, please make sure you have the fast and stable internet connection. You may switch off your Mobile Data and connect the stable WiFi router and see if it make difference.
Regards,
Bryan