Merchant Archive

I recently got Ad III.

I have 3 vendors.

Registered one fine.

Registered the second fine.

Decided I didn't like the name of the second, so I destroyed the third, made a new one and moved all my inventory.

Went to register the new third one, clicked on the radial menu manage vendor, register...

Nothing.

Destroyed the old second one, made a NEW one. Could register that just fine.

Is this a known bug? Will I have to make a new vendor and move my entire 300 item stock from one to the other to get on the map?