I just created a Date field, set the field type to "Date," selected a batch of records, and used Value Fill to enter yesterday's date in all the selected records.
The "value" I entered to fill is:
The result entered into all the fields is:
When I changed the field type to "Text" the value "04/05/17" is correctly filled in.
This is a new field that's blank, so I'll just go ahead and set the field type to Text and then flip it to Date when all done adding the associated dates to the records. But I'm curious as to why this is happening. Is it something I am doing incorrectly? Is it a quirk/bug in PanoX?