raw data CSV format is changed

Hi
We were using Webpagetest private instance(2.12) as part of our Front End performance testing process. We used to get the Raw data in CSV format for the entire transaction which is used to be flow of multiple pages. We migrated to WPT 2.14 version last week. Now we are able to get the raw data only for the first URL and not for the entire transaction. Could you please help us as how to resolve this issue.

Thanks
Sougato