slot on the center pin was there to allow ODY work inside UFS Long. But as you said, some people were breaking their pins because they put a screwdriver to tight it.
if you put Ithaka's body and Ithaka's mouthpiece you can use your Ody Traum. Its the best solution as I see it
The housing and ceramic are both v1. You can't use a v2 ceramic with a v1 housing...both have to be upgraded. The nut inside the ceramic is more than likely upside down which would explain the lack of a notch to use screwdriver. The top mouthpiece nut will not sit completely flush unless your oring is wore out or too thin so this is a good thing as it will not leak.
It's a shame about the TS base because unless you have a GGTS, you will not be able to use the Ody until you get a 510 base.
It looks to me like this Ody was pieced together. I hope you get it worked out with the seller.
Unscrew the ceramic housing/assembly from the base then loosen the connector pin from the bottom with a screwdriver if needed. Once loose you can unscrew from the bottom of the pin by pulling slightly while unscrewing to apply pressure to the nut inside the ceramic which will keep it from turning.
I would ask for a full refund if I were you
Yeah. It looks like this was put together piece by piece. What you have here is an Ody v1 mouthpiece, V2 mouthpiece top cap, V1/V2 Top Cap, V1 Ceramic Housing Assy with V1 ceramic, Kir Fanis Tank and GG Base.