Multiple carousels have inconsistent spacing between items

Via https://forum.omeka.org/t/shortcode-carousel-spacing-issues/5361

The first carousel gets a different spacing between items than the others. Looks like a quirk in the js not dealing well with multiple carousels on the same page? Or the way that I've assigned html:id to multiple carousels?

Dunno, but there's a possible fix to check in the forum convo.