Paper forms Barcode grayed out after edit

Hello,

I am struggling with a problem with pdf form which I've created with Adobe Livecyle Designer ES 4 Version 11.

I have four fields (3 textfilds and 1 drop down list) and  a Paper forms Barcode on my form(PDF417). Im using fields to populate barcode data. After user edits fields area of barcode becomes gray. How can I show updated barcode on form.

This is the original form.

This is what form looks like after editing fields.

And this is the collection for barcode.

Thanks in advance.