Is Glimpse.MVC able to work with HttpContext.Current.Session variables? - asp.net-mvc

Question

I'm wondering if the package Glimpse.Mvc5 (1.9.0) http://getglimpse.com/ is able to work with HttpContext.Current.Session variables.
For example when I store the current language in session HttpContext.Session['CurrentUILanguage'], if I enable Glimpse, it always shows me that Session is null, otherwise when glimpse is disabled everything works great.
Here is the sample code of my viemodel:
public class VmCulture
{
public int Id { get; set; }
public string Language { get; set; }
public string Symbol { get; set; }
public CultureInfo CultureInfo { get { return new CultureInfo(Symbol); } }
}
public class SiteSession
{
public static VmCulture CurrentUICulture
{
get
{
return (VmCulture)HttpContext.Current.Session["CurrentUICulture"];
// here I get it Null when enabling Glimpse
}
set
{
Thread.CurrentThread.CurrentUICulture=new CultureInfo(value.Symbol);
Thread.CurrentThread.CurrentCulture = new CultureInfo(value.Symbol);
CultureInfo.DefaultThreadCurrentCulture = new CultureInfo(value.Symbol);
CultureInfo.DefaultThreadCurrentUICulture = new CultureInfo(value.Symbol);
HttpContext.Current.Session["CurrentUICulture"] = value;
}
}
}
Update 1: Added the usage of SiteSession.CurrentUICulture
Suppose there is a BaseController class where I use the protected override void Initialize(RequestContext requestContext) for checking each request and persisting the current language.
Here is a sample code (simplified):
protected override void Initialize(RequestContext requestContext)
{
if (requestContext.HttpContext.Session["Languages"] == null)
{
//1. Get cultures from DB and add them to Session["Languages"]
//2. Get from Request the culture parameter and add it to Session["CurrentUICulture"]
//3. Set the current culture through SiteSession.CurrentUICulture = currentCulture;
}
else
{
//1. Check whether the current language did not change
//2. Set the current culture through SiteSession.CurrentUICulture = currentCulture;
}
base.Initialize(requestContext);
}