Hi can someone help why some IE11 users does not seems to be able to expand the Filtered Group By lists ? Thanks
Permanent Fix: Install the Hot fix!
We can also force Internet explorer 10 to work on IE9 compatibility mode by setting the META tag in SharePoint Master page:
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9">
Temporary Fix: Set the Browser Mode to IE 8!
How? Press F12, which fires IE Developer Tools. Select "Browser Mode: IE8". You can also try setting User Agent string to IE 8 from tools menu of IE Development tools.