Missing Items after Microsoft To-Do desktop app update

To-Do Desktop app seems to have done an update and functions are missing.

• The Suggested Tasks button no longer opens to display the list of tasks.
• The different lists no longer display all together when the app is open, only opens one at a time.

Are you unable to access most of the prior functionalities that the app would have?

M365

Update related. 

1. Check if the correct account is signed in. The account can be viewed on the top left. (From there, settings can also be viewed.)
2. Uninstall the To-do application
3. Reinstall from Microsoft To Do: Lists, Tasks & Reminders - Free download and install on Windows | Microsoft Store or To Do List and Task Management App | Microsoft To Do