List ItemUpdated Event not firing when updating item from code

Question

I have a problem with my eventreceiver. It is set to fire on updating item from a list, and works very good when I update that item from Sharepoint's web UI. However I have some code that goes through a list and updates it with new values, and this for some reason doesn't fire the event. Here's the updating code:

            SPListItemCollection listItemCollection = list.GetItems(query);

        foreach(SPListItem item in listItemCollection)
        {

            int itemID = matches.FindIndex(match => match.WebID == item["vG_ID"].ToString());
            if (itemID != -1)
            {
                if (item["vG1"].ToString() != matches[itemID].TeamLeftScore.ToString() ||
                    item["vG2"].ToString() != matches[itemID].TeamRightScore.ToString())
                {
                    item["vG1"] = matches[itemID].TeamLeftScore;
                    item["vG2"] = matches[itemID].TeamRightScore;
                    item.Update();
                }
            }
        }

How do I fix that?

Answer 1

As per Robert's suggestion, the answer to this is that an uncaught exception in the code's execution prevented the event from firing. Since Visual Studio was not catching it, I found it out by going through the ULS logs.