JsonSerializer.DeserializeAsync() randomly hangs indefinitely [Answered]

private static async Task<T> TryReadDataFromFile<T>(string basePath) where T : class
{
    var filepath = GetFilePath<T>(basePath);
    if (!File.Exists(filepath)) return null;
    await using var filestream = File.Open(filepath, FileMode.Open);
    var res = await JsonSerializer.DeserializeAsync<T>(filestream); // This line
    await filestream.DisposeAsync();
    return res;
}