I found DIAMOND HORSE ARMOUR AND GOLD HORSE ARMOUR. I also placed HAY BALES. This was in 1.6.2. I switched to 1.5.2. I then switched back. My DIAMOND HORSE ARMOUR, GOLD HORSE ARMOUR, AND HAY BALES were gone. I NEED MY THINGS BACK.

What I expected to happen was...
I would log back into 1.6.2 without any problems at all

What actually happened was...
I lost DIAMOND HORSE ARMOUR, GOLD HORSE ARMOUR, AND HAY BALES.

The steps to trigger this are...
1. In survival mode, put DIAMOND HORSE ARMOUR and GOLD HORSE ARMOUR into a chest. Also, place hay bales.

2. Switch to 1.5.2.

3. Switch back to 1.6.2.