I agree that elder Vaults should give a recipe every time or at least a much higher chance :slight_smile:
The last time I played on an official Siptah server I had my base very close to demon spider vault, I have lost count of how many times I went through that vault, but it was a massive amounts and I cannot remember ever getting a recipe there, so either that 25% chance is a lie or I was just one of the most unlucky players on Siptah :joy: