I had a guest worflow that worked prior to HPD...now it doesn't.

On loading of the workflow request form it displays:

Unrecoverable error during asynchronous call (Date.CultureInfo is undefined)

There is 1 date/DatePicker field in the form.

If I ignore that error, fill in the form and try to submit, it results in:

-------- Start of Exception dump --------
fileName: https://xxx.xxx.xxx/IDMProv/UIQuery?.../WFControls.js
lineNumber: 126
columnNumber: 0
-------- End of Exception dump --------

Which is code:

var _14=spiffyui.parseDateTime(val,this.displayDF);