Very weird indeed: lines looking fine on the Edit Page, but as soon as (pre)viewed these ugly double lines appear ??
What happened to WYSIWYG?
I found a workaround: I changed the Gutenberg ‘Separator’ for a Kadence Blocks ‘Spacer/Divider’ plus a Gutenberg ‘Spacer’ (to adjust for space after).
Not what I wanted but it works; so far…
Look here: 6601rs12 ICT Services