T206 PORTRAIT Subset on Set Registry

taul166

I just added the first 2 T206 Portraits to my inventory. I attempted to add the T206 PORTRAIT set to my group of sets, as a new set. But, the set does not show up as being available to add. The 2 cards are clearly PORTRAITS. I do have an inquiry into the PSA Set Registry Team, but thought I would ask folks if they have experienced this or have any thoughts. I have a guess on the reason but thought I would ask nevertheless. Thanks.