Vou começar com o feito que me leva a acreditar que esse pode ser o caso. Sombra Greve:

You can deal precision damage, such as sneak attack damage, against targets with concealment (but not total concealment).

No recurso de ataque furtivo para ladinos, lê-se:

The rogue must be able to see the target well enough to pick out a vital spot and must be able to reach such a spot. A rogue cannot sneak attack while striking a creature with concealment.

Claramente, Sneak Attack normalmente não é usado em alvos escondidos, mas o Shadow Strike permite isso. Até agora não há problema e tudo faz sentido. Swashbucklers adicionais têm:

Precise Strike (Ex): At 3rd level, while she has at least 1 panache point, a swashbuckler gains the ability to strike precisely with a light or one-handed piercing melee weapon (though not natural weapon attacks), adding her swashbuckler level to the damage dealt. To use this deed, a swashbuckler cannot attack with a weapon in her other hand or use a shield other than a buckler. She can even use this ability with thrown light or one-handed piercing melee weapons, so long as the target is within 30 feet of her. Any creature that is immune to sneak attacks is immune to the additional damage granted by precise strike, and any item or ability that protects a creature from critical hits also protects a creature from the additional damage of a precise strike. This additional damage is precision damage, and isn't multiplied on a critical hit.

Mais uma vez, bom e claro. Nenhum dano vs ocultação. No entanto, se olharmos para o talento do trabalho em equipe do Precise Strike:

Whenever you and an ally who also has this feat are flanking the same the creature, you deal an additional 1d6 points of precision damage with each successful melee attack. This bonus damage stacks with other sources of precision damage, such as sneak attack. This bonus damage is not multiplied on a critical hit.

Não há menção de ocultação. O Shadow Strike, no entanto, implica que todo dano de precisão não pode ser causado a alvos com ocultação (o que certamente faz sentido temático), mas não consigo encontrar nenhuma regra que faça com que um ataque preciso falhe contra um alvo com ocultação. Estou faltando alguma coisa?