LiveCycle ES2 - Auto Populate Date field when signed

Good afternoon,

I've got a signature field called "sgnPOC" and a date field called "sgnPOCDate" I'd like to have the date field filled in automatically when the sgnPOC is digitally signed.

I added the following to the postSign* event to sgnPOC.

 FORM.Main.sgnPOCDate.rawValue = util.printd("mm/dd/yyyy", new Date()); 

and different variations including setting the date to yyyymmdd and like. It just won't auto populate. It passes the script check in the script editor.

any ideas?

Thank you.