I vended a , which says it's "Rare" beneath it and not "Retired" like I believe it should.. Am I wrong in this, or is this something I should file a ticket about? The other teacakes list them as Retired.

I don't think you're necessarily wrong about it but I'm not sure it's something really to file a ticket over..there's a possibility it's rarity is less than that of the others.

Could just be an error though.

it is possible that since the vending got revamped that this is an acceptable result. It sounds like an error to me, though.If it were me, I'd file a ticket just to be sure.

I would make a thread in Problems & Bugs. If it's an error, that's what they'd tell you to do in a ticket anyway.