[sound F/X: source diving] Hmm, it looks like Dark Master may have been trying to do this deliberately; the addon overloads ActorTalents:numberKnownTalent() to always return 4, presumably specifically to produce this effect. You're right, though, that's way too scattershot an approach: not only does it affect all trees for the class, it affects all trees for all races and classes as long as the addon is enabled.

If you're trying to disable the learn-lower-talents-first requirement for your Psionic Blade talents, Dark Master, the way to do that is in this line of the talent definition:

type = { "category/name", 1 },

The number in the second slot is one more than the number of talents in the category that you'll be required to know before you can learn this talent; setting it to 1 effectively removes the requirement. You can check the Psionic/Absorption tree for an example; it does this for all its shield talents (but not Forcefield).

After a new character using debug mode everything work right