"Y" appearing on top of accounts pages when printing

SUGGESTED

I have recently updated to V21.1 and am having an issue when printing to either PDF or the printer. The letter Y is appearing in the header of some of the accounts pages. It seems to be linked to code 0020 in the database (check box for final accounts/draft). I have attempted to suppress the printing on this line within the various headers, but it still appears. I am not producing ixbrl accounts.

Can someone explain to me what this indicator is as I'm worried that CRO will reject the accounts with this digit on it. 

Thanks