Heading numbers replaced by bullet points when printing

On the screen, my document shows numbered chapter and section headings (eg.1, 1.1, 1.2, 1.1.1 etc). When printing a selection either to a printer (hard copy) or pdf, the heading numbers disappear and are replaced by bullet points. In addition every paragraph now has a bullet attached to it. Just repeating, this does not show on the screen, only on print out. I can’t for the life of me work out why,

FYI, the bullet points are of various sizes reflecting the heading level (eg. level 1 bigger than level 2 etc).

Any suggestions for trouble shooting?

This issue is resolved. It appears to be a bug. If the text selected and printed ended with bullet points, the corresponding print out replaced heading numbers with bullet points (as described). If I adjust the selection to end with ‘normal’ text, the issue does not appear.

Oh! It’s great that you have discovered a bug - have you posted a bug report yet? Please do if you haven’t. Thanks!

I have now, thanks for the link.