Nick,
Your fancy new template has no tag for displaying standard Joomla notice/warning/error messages. I tried to login and the page simply refreshed, as you mentioned. If I then loaded the atomic template (index.php?template=atomic), the following error message appeared:
Linked API Error: OAuth callback URL was not confirmed by the LinkedIn end-point ()
From:https://api.linkedin.com/uas/oauth/requestToken?scope=r_emailaddress
Now, why you're seeing that, I'm not sure. What I'd recommend is:
* Go to the
developer.linkedin.com/ area and check out your API settings. Specifically, make sure your Website URL is correct for the new site.
* Turn off SEF URLs and try again
* Re-install JLinked. That should update the component and plugins to make sure nothing was lost in the move.
Hopefully, one of those will get you going. I'd also recommend making sure the template is properly showing Joomla messages which can help diagnose this, and many other things.
Good luck,
Alex