SummaryLinkedIn Search URL isn't working. Here is how I fixed it
I noticed that the LinkedIn Search link was not actually directing me to a search for the candidate within LinkedIn, but just a general page. I navigated Administration> Customize Recruit> Candidate Fields> Scrolled down to LinkedIn search and selected Edit.
I replaced the current URL with https://www.linkedin.com/search/results/index/?keywords=<<CANDIDATE_FIRST_NAME>>%20<<CANDIDATE_LAST_NAME>>&origin=FACETED_SEARCH
This worked for me and I tested it out on another system and it worked for them. Hopefully this works for you.