InfoPath 2013 Moving a Form from an Existing Form Library to a New Form Library

• Create a document library to store the InfoPath form content type.
• Publish the form as a content type to the site, save it in the new library created in step 1, then promote any new columns as site columns.
• Create a new form library and add the new content type as the default.
• Save a form from the old library by ‘downloading a copy’, then upload it to the new form library.
• Relink this form in the new library.

It should open and function as normal.