I know that the AEG (azure event grid) works with cloud schema 0.1 as shown here https://learn.microsoft.com/en-us/azure/event-grid/cloudevents-schema#cloudevent-schema.
But the cloud event schema latest version is 0.2 at https://github.com/cloudevents/spec/blob/master/spec.md.
Currently, Cloud Event Schema V0.2 is not supported in Azure Event Grid (support for it is expected to be added in the next few months).