White Space (or lack of)

[Suetonius]

With Publisher v.1 I printed successfully labels as required onto A4 sheets on a PC..

Simple enough, I created a "page" the size of a single label, created a coloured bar from edge to edge and vertically centered, with overlayed white text.

When it came to printing, I selected N-up and filled in the spacing details for the labels.  Since the page size was the same as the label, I also selected 100% scaling.  I then printed off the desired labels without any bother.

After a time, I needed to print more labels, but now, the print completely ignores the vertical spacing of the bar (along with the space above it) and prints the top of the coloured bar hard against the top of the label.

Now we come to the tricky part.

Since last printing these labels, I have migrated to v.2 AND converted to a Mac Studio M1 running Ventura.

I am running round in circles.  Any ideas?

[Suetonius]

Ooh dear!  One of these days.

In spite of checking and re-checking, when I posted my original question, I had simply mistyped the top margin figure (3mm instead of 13 mm), but, in classical fashion, read what I wanted to see.

Sorry chaps - my abject apologies all round.
I shall now go to a darkened room.   🙄