FileSystemWatcher stops raising events after some time

Question

I am using FileSystemWatcher to monitor newly added files in several folders. FileSystemWatcher is created for N number of folders/directories to watch separately. It works fine at the start but after some time it doesn't raise any events. Am I missing something here? Any inputs/help is much appreciated.

// Set up FileSystemWatchers for the specific subdirectories.
foreach (string subdirectory in subdirectoriesToWatch)
{
    string subdirectoryPath = Path.Combine(rootDirectory, subdirectory);
    FileSystemWatcher subdirectoryWatcher = CreateWatcher(subdirectoryPath, true);
    subdirectoryWatcher.Created += (sender, e) =>
    {
        Console.WriteLine($"File created in {subdirectory}: {e.Name}");
    };
}

I have increased the InternalBufferSize as well and it's going to filter the properties as well by based on file mask provided.