This article provides a solution for the issue where you cannot change the default metadata schema.
Environment
Steps to reproduce:
Ensure you do not have the metadata schema in /dam/adminui-extension/metadataschema
node in the project folder /conf/project ID
. The project folder is not checked for custom metadata schema.
If you do, remove the node from that path. New schemas should be created in conf/global/dam/adminui-extension/metadataschema,
the default for metadata schema. For more information, refer to the Metadata schemas, in the AEM as a Cloud Service user guide in Adobe Experience League.