This has probably been asked and answered, but I can't find it...
In the Deathwatch core rulebook, in the Librarian Specialty, they get Psyniscience as a trained advanced skill. Then in Rank 1 advances, there's Psyniscience sitting there for 400xp. In rank 2, Psyniscience +10 is there for 400 again. +20 is at rank 3. Clearly something seems a little off here because if I buy it and get +10 at rank 1, then i'll have +20 at rank 2, and +30 at rank 3; but there is no plus 30. The errata did not fix this, and since Librarian is a base specialty, there's no way a Librarian doesn't start with Psyniscience. I'm not trying to munchkin, but I'm seeing munchkin stuff basically being pushed as either: A) you can go ahead and push through to +20 by rank 2, or B) the editors were drunk when they made the rulebook and the errata and just ignore it. Can someone provide page numbers and book titles that explain why this is a thing and what a player/GM is supposed to do about it?