Victor's Items cannot be obtained through Achievements

A few Items from Achievements have become unaquirable after the 1.20 update. 

These items are

• "Victor's Wide Hat" 
• "Victor's Tunic" 
• "Victor's Overcoat"
• "Victor's Trousers"
• Victor's Boots"

For some reason, when viewing these items in the Skin Creator, the game displays "This item is unlocked by completing an Achievement", not the required Achievement.

Pressing "View Achievement" opens the Achievements menu, not the specific Achievement, while all other customizations open theirs. I attached some of the Achievements that rewarded the Victor's items, all these items were combat-related to commemorate the player being the one victorious. (Exact Achievements listed in one of the images)