Why does Assert.AreEqual(T obj1, Tobj2) fail with identical byte arrays

I have two identical byte arrays in the following segment of code:

    /// <summary>
    ///A test for Bytes
    ///</summary>
    [TestMethod()]
    public void BytesTest() {
        byte[] bytes = Encoding.UTF8.GetBytes(Properties.Resources.ExpectedPacketData);
        TransferEventArgs target = new TransferEventArgs(bytes);

        byte[] expected = Encoding.UTF8.GetBytes(Properties.Resources.ExpectedPacketValue);
        byte[] actual;
        actual = target.Bytes;

        Assert.AreEqual(expected, actual);
    }

Both arrays are identical down to the very byte. In this scenario, why would Assert.AreEqual fail?