Why does Mail merge to labels create extra blank pages?

[BillSparrow]

When I run a mail merge to mailing labels it creates an extra blank page between each page. I have found from this forum that I can prevent these blank pages from printing by going to Tools / Options / LibreOffice Writer / Print / Print automatically inserted blank pages and remove the tick, but why is it creating them in the first place?

Turning off that option would mess things up if I was, for example, printing a book that needed to have all chapters starting on a right hand page.

Also, having the pages of labels identified on screen as 1, 3, 5 as I scroll through the document is really confusing!
If I want to print a single page of labels, I have to bear in mind that to print the page that is identified on screen as page 5, I need to select page 3 in the print dialog.

[Ratslinger]

Hello,

It is a Bug and should be reported here → Bugzilla

Edit:

As for specific page numbers, in Ubuntu 20.04 with LO v7.0.3.x, on the print dialog there is a Tab titled LibreOffice Writer. There is another setting to Print automatically inserted blank pages and removing that allows you to print pages 3-6 (no blank pages).