I have a custom connector for calling a REST API and a single screen with an edit form. I'm setting the DataSource for the edit form to a method on the custom connector which returns a list of JSON objects. I'm setting the Item for the edit form to the first element in the list.
As far as I know, edit forms in Power Apps expect the DataSource to be of data type Table and Item to be of data type Record. I've verified that the data types are correct, and yet the form is not populated at all. It just says "This form isn't connected to any data yet", even though it is. Additionally, I can see the data returned by the API in the drop down on the formula bar. The data is coming in but the edit form refuses to use it.
Even though it isn't explicitly stated anywhere in the documentation, I'm pretty sure edit forms simply do not support custom connectors as a data source. Can somebody please confirm whether this is the case or not?

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