Sorry for clutter.
For future reference.
Stagging site WP SHOW POSTS PRO doesn’t offer export / import options.
When moving setting over by hand, the shortcodes were copied with wrong IDs.
Obviously on production site, they are generated again with different IDs.
It is possible to export database, files by hand, but this time it wasn’t needed.
Would love an export / import option in Show Posts Pro or possibly integration with GP Pro.
TL’DR: Check your shortcode IDs if you have moved site etc.
Thanks and sorry for bother.