If you’ve ever dropped a perfectly valid Sitecore rendering into a nested <Placeholder> and watched Pages Builder (or your local app) complain that it can’t find the component in component-map.client, you’re not alone — and you’re probably not looking in the wrong place.
This post walks through a real debugging session from an XM Cloud / Sitecore Content SDK Next.js App Router site: adding a Video rendering inside an Interior Media Hero Banner placeholder. The component existed. The GraphQL query existed. The Sitecore rendering componentName was set. And yet the client still couldn’t resolve it.










































