C＃Mvc Ajax baseUrl

So,

I have an application that uses MVC Areas. The route for the controller looks like

[Route("Settings/{something}")]

Then I have an Action

  [Route("suggest/{term}")]
  public ActionResult Suggest(string something, string term).

I try to call the Suggest action from javascript

var suggestUri = "suggest/";
$searchInput.autocomplete({
    source: function (request, response) {
        $.ajax({
            type: "GET",
            url: suggestUri + request.term,
            dataType: "json",
            success: function (data) {
                response(data);
            },
            error: function (err) {
                console.log(err);
            }
        });
    },
    minLength: 3
});

From my point of view this ajax call url should be

 http://localhost:7311/Settings/firstValue/suggest/term

But the actual result is

 http://localhost:7311/Settings/suggest/term

It's missing the {something}

There is for sure something I do wrong, but I have no idea what.

LE: I've done some tests.

If I apply to my controller a different route like

[Route("Settings/{something}/a")]

The result is

 http://localhost:7311/Settings/firstValue/suggest/term

When it should be

http://localhost:7311/Settings/firstValue/a/suggest/term

Then i tried to do

[Route("Settings/{something}/a/b")]

The result is

 http://localhost:7311/Settings/firstValue/a/suggest/term

When it should be

http://localhost:7311/Settings/firstValue/a/b/suggest/term

It feels like the mvc always leaves out the last parameter from my controller. Any reason?

LE2 :

In Startup.cs the MapRoute looks like this

  app.UseMvc(routes =>
            {
                routes.MapRoute(
               name: "somethingBased",
               template: "{area:exists}/{somethingBased?}/{controller=Home}/{action=Index}");

                routes.MapRoute(
                    name: "home",
                    template: "{controller=Home}/{action=Index}/{application?}");

            });