Didn't receive 6 star equipment bought from the shop

Exactly as the title says;
I bought a hell staff for my warlock, and it seems to have disappeared from or was never in my inventory

Can anyone confirm?

Additionally, the 6 star chest from the honor shop turned into a 5 star immediately after purchasing the item, so perhaps this is related to the refresh of the shop. None of the other items changed though, just the equipment chest. (Unable to give a 6 star item from a 5 star chest = error = no item)