I have designed a report that includes an embedded SubReport. When I render it to PDF, it looks correct.  When I render it to CSV, there are two issues that are probably related:

1. The heading row columns should contain the main report's detail row textbox names followed by the SubReport 's detail row textbox names.  However, the SubReport 's detail textbox names are repeated a few times instead of just included once.
2. In the situation where there is no detail row in the SubReport, a CRLF is missing at the end of the main report's detail data.  The next main report detail data appears on the same row, following the previous main report's last detail column -- it should begin on the next line.

I understand that CSV Rendering is not recommend for hierarchical output as described in the CSV Design Considerations. However, I am using the Hide the SubReport if no Values to not display the SubReport when there is not data. The hidden SubReport implementation can be seen in the below binding expression.

<Bindings>
    <Binding Expression="=Count(Fields.AP_OPN_CHK_VCH_NO_C)>0" Path="Parent.Parent.Parent.Visible"/>
</Bindings>

Using the above approach, the master report is missing a CRLF when the detail data is not visible. The record shows it appended to the previous record.

I started working with Support on this issue and have discovered that it might be a bug. As a result, I am also attaching their sample to help replicate the issue. For the pdf and csv output see the first attachment in the original ticket.