Headers/Footers - not showing on document

I am trying to attach headers and footers to a Gantt chart, however when I am in the print menu, although I can select the header and footer and amend they are not showing on the final print, not entirely sure where I am going wrong

@Redbourn Is it possible you’re working with only the “Master Page” in the Print dialogue? If the first page is set to be customized independently, for example, this could cause the behavior you’re seeing.

If this doesn’t explain the behavior you’re seeing, our Support team should be able to help you sort this issue out pretty quickly! They can be reached at omniplan@omnigroup.com or 800-315-6664.

I have looked at both your suggestions but this does not seem to help, I have emailed the support team for further advise