1. There is no limit of 10 on CF references. Could be because of the size of the fragment. Could you please reach out to support and get a ticket created with Template/ CF details? Will check and confirm.2. We don't have support for dynamic AEM content fragment IDs. But we hear you, this is included...

@Ajo_WisdomChase - Have you tried the new beta feature to ingest via csv - https://experienceleague.adobe.com/en/docs/journey-optimizer/using/test/preview-test/simulate-sample-input#custom-profiles The current version allows you to preview content by adding values for the personalisation attributes ...