If I try to specify a CustomCategory when adding JumpTasks to a JumpList, the items won’t show up in the list. I am using Winforms.

current code:

private void JumpListUpdate()
{
   JumpList jml = new JumpList();
   jml.ShowRecentCategory = true;
   jml.ShowFrequentCategory = true;

   foreach (string file in Properties.Settings.Default.Recentfiles) {
      JumpTask jmp = new JumpTask();
      jmp.Title = file;
      jmp.CustomCategory = "Levels";
      jml.JumpItems.Add(jmp);
   }
   jml.Apply();
}

If I remove the jmp.CustomCategory = "Levels"; the jump list shows up fine with the file paths, but they’re in the “Tasks” category because that’s default.

And this is how it looks when the CustomCategory is applied