Weapon Mastery (Unarmed) bugged

[MaskedOne1]

EDIT: after relogging twice, the report below is no longer applicable, the log writes that Weapon Mastery (Unarmed) is disabled, but it is in fact added on the character sheet and is also added in combat, so there is no problem. i apologize for the inconvenience.

elloes,

playing a new character, female dwarf, unarmed fighter who is not a monk character.
for protection i use shields, just made it to level 18, picked Weapon Mastery (Unarmed) and it is not working while i have a shield equipped, which is a bug i hope you can fix. from the wiki below, it says the feat is applicable when using natural weapons or no weapons. My character fights with shield and fist.

From the Wiki:
Weapon Mastery (Unarmed)
Type of feat: General
Prerequisite: BAB +8, Weapon Specialization in Unarmed Strike.
Required for: None
Specifics: When using natural or no weapons, you gain a +2 bonus on attacks and a +2 bonus on damage.
Use: Automatic
Using Wild Shape, the deats Weapon Mastery Unarmed, Unarmed Weapon Focus, Unarmed Weapon Speicalization, Unarmed Improved Critical, and Unarmed Power Critical translate or "morph" temporarily into the appropriate Creature Weapon Feats (only while Shaped, and return to normal when unShaped).

Special: A fighter may select Weapon Mastery (Unarmed) as one of his fighter bonus feats.

since the feat to my knowledge does not work as intended, or as expected from reading the feat description (it says nothing about not working while having a shield equipped), i need help from a DM to subtract xp, so i can choose another feat in the mean time, thank you.

cheers