Hello,
it doesn't look like one of our threads: there are no references to our library in the stack, this "Loader" category of NSURLConnection is something we don't use (it's not even part of public APIs), and its name ("com.apple.NSURLConnectionLoader") is unknown to us.
Our OS X client library, starting with 1.0.0, runs all NSURLConnection operations inside threads with a name like "LS URL Dispatcher Thread <number>". It looks more like a system background thread spawned by some other operation.
On
StackOverflow there's a good answer about EXC_GUARD that can provide some hints.
I'm afraid we can't be of more help.
Best regards,
Gianluca
