Azure Portal provides a way to test Azure Search Index queries using the 'Search explorer' page.
If one of the fields in the index is not set as Retrievable, it won't appear in the results when retrieving data.
For debugging purposes, is there a way to force-show fields in Search explorer which are not set as Retrievable ?
Or some other way to view all fields of a document.
If the field is not marked Retrievable, there is no way to get it.
You'll have to set retrievable to true for the field, which you can do without re-creating the index. However, this is not recommended for production indexes where presumably the existence of the non-retrievable field shouldn't be disclosed.