Summary

Unable to select the date from the date picker, when editing or creating events:

Error:

mycalendar.action:1 Uncaught TypeError: Cannot read property '_selectDay' of undefined 

Failed here:

(function(event){DP_jQuery_1477365329539.datepicker._selectDay('#simple-endDate',9,2016, this);return false;
})

Environment

Affects Team Calendars 5.3.15-D20160930T010735 (Cloud release), browser independent (tested on Safari, Chrome, Firefox)

Workaround

Works on most scenarios, but not all:

1. Instead of clicking on the dates in the date picker, manually type in the date instead (highlight the textbox and manually change the dates)