The minor raw cut sapphire is not working properly. Also when a world item drops such as a tome of exp, it does not say it in the loot section. (I think this applies for all of the world drops).
You have to actually open bodies to see if you looted a world drop. I'm not sure if that's intended but you would waste a huge amount of time if you checked the body of every monster you kill.
I ended up getting burning flesh 3-4 times in a row and was pretty disappointed because I couldn't really use my armor, but I think that's how it should be. Not every enchantment should be "good" or else it would be to easy to get the equipment you want. Though I do find it more useless than useful because even with a full Burning Flesh set the damage would not be that great, but I could be wrong.
I ended up enchanting my magma boots and got burning flesh +1, but since the boots have fire protection it negates itself. It's pretty cool because I run around on fire, yet I don't get damaged.