Kruel Route Profiler - Details (known issue)
If you find yourself with a blank result as below then the site may be having an issue calculating a route for you. This may be down to your direction details...

Load the map back up in Google and check the details of the route on the left part of the screen. You need to make sure there are no generic names in place as shown circled here. Even though it may work on the website, the route profiler needs more information.

Once these are fixed, reload the route to make sure Google still agrees with it.

Now, re-try this more accurate route in the profiler and it should hopefully load up OK.

... and you should be able to get a working route profile out of it too!
Hope this helps some people.
Thanks
Tom.