Hi Fleg,
We sought further information from the Dev team about this last week and found that this is working as intended. I think we probably missed answering as we received the answer late on Friday so I’m sorry about the delay in communicating this.
Because Natura’s Star is a new Weapon it won’t appear in the Soulforge for a few weeks.
Normally, we don’t encounter situations where we’d expect a new Weapon to be in the Soulforge so soon after the Weapon is released because it’s unusual to have the same Kingdom be the weekly event Kingdom 3 times in such a short period. But it usually takes a few weeks for things to be added to the Soulforge.
The information I have is that it won’t be in the Soulforge until after this current Campaign has ended.