Sometimes if I am making a lot of essence out of the magic stones the earth stone will be in the queue for crafting. However it wont craft and the stones are just stuck in the alchemy stove. The only way to get it out is to demolish the stove.
As far as I can tell you're meant to keep the items in your hotbar when you die. However when I die on a pteranodon all my hotbar items are removed. It creates a box for me to get my items back in, but they aren't in there.
In the fury mode it was 2 days until war, yet other players outside my tribe were able to pick me up and drop me. They then proceeded to take my items. This should not be possible in the peaceful time.