Hey y'all trying to use Layout 351 https://www.relume.io/components/layout-351 with a CMS and it doesn't seem to read it...

Hey y'all trying to use Layout 351 https://www.relume.io/components/layout-351 with a CMS and it doesn't seem to read it. I put accordian item in as a collection item but it leaves it as one item instead of populating with 5 is there some code I need to modify? bit stumped and it's the ideal component for a section i'm working on