When you get to level 3 as a warlock and pick the Book of Ancient Secrets as your Eldeitch Invocation during character creation, the page generates 3 dropdown lists to pick spells. The first two drop down lists are not complete lists of all of the available ritual spells. The third drop down is a complete list.
The first two should have all lvl 1 rituals listed, if they don't let us know the specific spell(s) that's missing. The third and beyond are not automatically learned when you take the invocation, they are there to allow you to add any spells you pick up along the way.
When you get to level 3 as a warlock and pick the Book of Ancient Secrets as your Eldeitch Invocation during character creation, the page generates 3 dropdown lists to pick spells. The first two drop down lists are not complete lists of all of the available ritual spells. The third drop down is a complete list.
The first two should have all lvl 1 rituals listed, if they don't let us know the specific spell(s) that's missing. The third and beyond are not automatically learned when you take the invocation, they are there to allow you to add any spells you pick up along the way.
I know this is a 5 year old post, but thank you for you answer!
I was literally trying to figure out why I was being offered 3 lists instead of just 2 until I saw your answer!