Broken: Cannot "Pick a date" on To Do Web

Hello. I'm using To Do on the web.  I've noticed for several weeks that if I try to change the date of a task using "Pick a date," then I cannot click any date.  Same goes for picking a reminder date.  I have tried personal and work accounts, and I have tried multiple browsers. 

Steps to reproduce:

Go to to-do.office.com (and log in)

Create a task

Click Due Date > Pick a Date

Try to select a day; you will be unable to.

Thanks.