New Texture Pack Beta Won't Stay Loaded

When I load the new Minecraft Texture Update beta (v1.03?) it loads properly, and I like it! (Especially the new clearer glass!)

However, when I log out and come back to play in my Realm again, there seems to be a 50% chance the texture pack will have reverted back to "off" and is in by list of available texture packs again. Then I need to re-add it and load it up for it to work each time.