Menu's web-item doesn't display

[nahebatoq]

Hi everyone. It's a very strange situation. Menu's web-item stopped display on the work server. It's is not reproduce on a test server and via atlas-run. If I resize browser's window - the menu's web-item will display or More will display. Although, if I refresh the JIRA's page, the menu's web-item will miss again.

When web-item missed - it has: <li style="display: none;">

<web-section key="test-section"
             name="test-section"
             location="test-menu"
             weight="20"/>


<web-item key="test-menu" section="system.top.navigation.bar" weight="1000">
    <label>Test</label>
    <link linkId="test-menu"></link>>
</web-item>
Also, I tried to use weight="100"/weight="200"


<web-item key="test-web-item"
          name="test-web-item"
          section="test-section">
    <label>Test</label>
    <link linkId="test-link">/secure/Test.jspa/</link>
</web-item>

Any sugggestions?