If you look at the name of the nautilus armour types, they are all spelled in English US not in English UK. The other types of armour are correct, only the Nautilus Armour is incorrect.
Steps to Reproduce:
Find Nautilus armour.
Hover over the name and observe.
Observed Result:
It is spelled as “Nautilus Armor”.
Expected Result:
It should be spelt as “Nautilus Armour”.
The new features haven't been translated into other languages yet, resolving as invalid