Trying to lockstyle and upgrade AF

[Nnoitora]

Platform: Windows 11
ISP: Awaser Oman LLC
Type of Internet Connection: Fiber optic
Internet Connection Speed: 1GBps
Date & Time: March. 1, 2026 (ongoing)
Frequency: Always
Character Name: Nnoitora
Race: HumeF
World: Asura
Main Job: Dancer, Lv.99
Support Job: Warrior
Area and Coordinates: Port Jeuno
Party or Solo: Solo
NPC Name: Sagheera
Monster Name: none
Steps:

1:Attempted to upgrade Dancer Artifact armor to item level 109 at Sagheera in Port Jeuno.
2:The Dancer’s Casaque (body) was accepted and upgraded normally.
3:The Dancer’s Tiara (head) and Dancer’s Tights (legs) cannot be traded to the NPC for upgrade.
4:These two items also cannot be used for lockstyle, which appears abnormal.
5:The quest “The Road to Divadom” is already completed.
6:Tried storing and retrieving the items from storage NPCs to refresh item flags.
7:Issue persists after retrieving the items.

[Alhanelem]

The dancer's set has gendered versions that can't be used by the opposite gender, have you perhaps performed a race change recently?

There is an NPC that can exchange these items if you performed a race change to the opposite gender. This is the only explicable reason why you're not able to use these items to lockstyle. Because this is the only AF with a gender restriction, it can be swapped for the gender appropriate version after a race change.
See the info here:
http://www.playonline.com/ff11us/envi/racechange/

And the relevant section-

Please note that some equipment can no longer be worn after changing your character's race or gender. If you change to a race or gender that does not fulfill the equipment requirements, the equipment will be automatically unequipped once you finalize your character's appearance.- Except in certain cases, any equipment that can no longer be equipped due to changing your character's race or gender (such as equipment that is only available for a specific race or gender) cannot be exchanged for other items.

Exceptions - You can trade the items listed below to the Ancestry Moogle in order to receive an item that meets your new requirements
《 Eligible items 》

Dancer's Tiara / Dancer's Casaque / Dancer's Bangles / Dancer's Tights / Dancer's Toe Shoes / Dancer's Tiara +1 / Dancer's Casaque +1 / Dancer's Bangles +1 / Dancer's Tights +1 / Dancer's Toe Shoes +1 / Maxixi Tiara / Maxixi Casaque / Maxixi Bangles / Maxixi Tights / Maxixi Toe Shoes / Maxixi Tiara +1 / Maxixi Casaque +1 / Maxixi Bangles +1 / Maxixi Tights +1 / Maxixi Toe Shoes +1 / Maxixi Tiara +2 / Maxixi Casaque +2 / Maxixi Bangles +2 / Maxixi Tights +2 / Maxixi Toe Shoes +2 / Maxixi Tiara +3 / Maxixi Casaque +3 / Maxixi Bangles +3 / Maxixi Tights +3 / Maxixi Toe Shoes +3