Bundling and Minification not working in MVC4 with JqueryMobile

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C#

MVC

jQuery

MVC4

I am using bundling and minification in MVC4 with Jquery Mobile 1.4 to create Web Application.

In project Login Page which is not derived from Layout Page. contain 4 Bundling there are

@Styles.Render("~/Content/css")
@Scripts.Render("~/bundles/modernizr")
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/Custom")

Which Works Great but it applicable only to one Login View.

After User Logs in Other Pages derived from Master Layout. So we thought to have all .js and .css in Master Page. With above 4 bundle we added 1 more bundle.

@Styles.Render("~/Content/css")
@Scripts.Render("~/bundles/modernizr")
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/Custom")
**@Scripts.Render("~/bundles/AppCustom")**

But browser not loading @Scripts.Render("~/bundles/AppCustom") function in this file is not hitting. Please guide Me.