Document Intelligence JSON response not containing tables mapped in custom model

I have a problem with Azure Document intelligence JSON response. 

I have created Custom Model with 2 tables mapped. Model is working ok while being tested from Document Intelligence Studio or Postman.

While triggering this from Azure function although and using following method: 

DocumentAnalysisClient client = new DocumentAnalysisClient(new Uri(endpointFinal), credential);
AnalyzeDocumentOperation operation = await client.AnalyzeDocumentFromUriAsync(WaitUntil.Completed, modelIdFinal, formUri);

var operationResult = await operation.WaitForCompletionAsync();

The result of it does not contain extracted data for those tables (there is section Documents and those custom tables are visible as fields but are not containing any data). 

Has anyone faced similar issue?