Possible bug: The batch attribute editor allows you to specific multiple date-type fields in the configuration, however when attempting to perform a batch attribute update only 1 of the date-type fields shows a calendar control drop-down and you cannot manually type in the date information.
Can anyone confirm this? Workaround?
I think this may be a publishing issue. I re-published the same Feature Class again as a new hosted Feature Layer and configured the widget on it and it appears to function as expected.