I take the profile of someone, I tested in a linkedin email scraper, and the email was successfully found, When I use linkedin-to-jsonresume everything is scripted except the email.
This extension is not intended to be used as an email scraper. That being said, when a profile includes a public-facing email address, this extension will include it as part of the generated JSON. But it must be public facing, as in, you can click the "Contact info" link at the top of the person's profile and the email shows up in the popup that appears.
The tool that worked for you might be using third-party data, outside of LinkedIn, to link email addresses to profiles.
Without providing me with a profile link, error message, or any sort of information related to your issue, I can't verify let alone reproduce this issue.
I take the profile of someone, I tested in a linkedin email scraper, and the email was successfully found, When I use linkedin-to-jsonresume everything is scripted except the email.