Dropdown master page didn't work after change page

Question

Didn't work dropdownlist Risk Content in master page after change page to the setting page. The dropdown just work after go back to home page again

MasterPage.master

<div id="navbar" class="navbar-collapse collapse">
  <ul class="nav navbar-nav custom_nav">
    <li class=""><a href="<%= Page.ResolveUrl(" ~/Home.aspx ") %>">Home</a>
    </li>
    <li class="dropdown"><a href="#" class="" data-toggle="dropdown" role="button" aria-expanded="false">Risk Context</a>
      <ul class="dropdown-menu" role="menu">
        <li><a href="<%= Page.ResolveUrl(" ~/pages/RiskContext/ObjectiveKPI.aspx ") %>">Objective (KPI)</a>
        </li>
        <li><a href="<%= Page.ResolveUrl(" ~/pages/RiskContext/RiskLimitAndERR.aspx ") %>">Risk Limit & Expected Residual Risk</a>
        </li>
        <li><a href="<%= Page.ResolveUrl(" ~/pages/RiskContext/ImpactScaleTables.aspx ") %>">Impact Scale Tables</a>
        </li>
        <li><a href="<%= Page.ResolveUrl(" ~/pages/RiskContext/ProbabiityScaleTables.aspx ") %>">Probability Scale Tables</a>
        </li>
      </ul>
    </li>
    <li><a href="<%= Page.ResolveUrl(" ~/pages/Setting/SettingRole.aspx ") %>">Settings</a>
    </li>
    <ul>
</div>

What I miss from my code?? help me. thank before..