Unable to Publish Outlook.com Calendar

[John_Bloggs320]

Hi,

When trying to publish Outlook.com calendar, I am unable to select the calendar. The calendar appears, but when clicked, it is never 'selected'. Refer to this URL:  https://outlook.live.com/calendar/0/options/calendar/SharedCalendars 

At first the calendar appears:

After clicking 'Calendar':

  ^ calendar remains unselected.

Previously, I published the calendar and then unpublished it. Since then, I have been unable to select the calendar to publish it.

Anybody know what's up with Microsoft?

Thanks

[#2]

Exact same issue here.

[#3]

Detto. Cannot publish my primary calendar (all others can be selected, just not the primary one).