Critical Mastery feat - prerequisites

[Nalgaeryn]

Hey,
I'm not sure if this is an issue with TTT or with the base game.

If you take Critical Focus (feat gives +4 to crit confirmation rolls) then you can take a whole selection of other feats:
Sickening Critical
Tiring Critical
Bleeding Critical*
Blinding Critical
Stunning Critical*
Exhausting Critical
Staggering Critical
Flaying Critical*

All of those feats say: "Special: You can only apply the effects of one critical feat to a given critical hit unless you possess Critical Mastery."

You need to take two of these feats to get any bonus from Critical Mastery. It has the following prerequisites:

Critical Focus
Fighter level 14
and
TWO OF:

• Blinding Critical
• Exhausting Critical
• Sickening Critical
• Staggering Critical
• Tiring Critical

For some reason, Bleeding, Stunning, and Flaying don't let you qualify for this feat, even though they have the caveat included in their description.

Is this a base game issue, or an issue with another mod that added these feats and didn't integrate them fully?

[Vek17]

This looks like another mod adding new critical feats but not updating the critical mastery prerequisites