Unable to get page weights(JS, CSS, Image bytes/requests) for test with multi steps

[shruti_s_seth_accenture]

https://www.webpagetest.org/result/20031...ae27013c0/
Ran the above test with below steps:
etEventName Launch
navigate http://www.bbc.co.uk/
setEventName News
navigate http://www.bbc.co.uk/
execAndWait document.querySelector('.orb-nav-news a').click();

While using WPT Bulk tester, the fetch macro for this test gives below error:
TypeError: Cannot read property 'js' of undefinedDetails

Also as seen in the screenshot, the values are not fetched for
breakdown.js.requests
breakdown.css.requests
breakdown.image.requests
These values are available on the Content Breadown.

If i run same test with only 1 step, these values are fetched.

Can anyone help me get these values for each step using the correct JSON Path extractors?

Thanks for your help!
Shruti