I have completed 11/12 of the trading post according to the achievements but on my calendar (yes I marked them down), I completed 12/12 and havent been awarded credit for Arsenal: Blades of Elune from April 2023.
I remember this month because there was some problem with completion - and looking back at other forum threads, I can see others also didnt recieve their blades of elune that month either. I guess I forgot to follow up at the time.
My main is a priest and she wouldnt have been able to learn these as they are swords only. Ive looked through the item restoration for all of my 10 characters and transmogs.
What to do? I have other high value items from this month like the Magenta Cloud Serpent.