The problem is that the layout is based on table 2, the portal is based on the relationship Table2 -> SelfByConstant, but the field you are talking about is from the TO called Table 1.
You need to create a downstream TO based on Table 1, and relate it by the keys you mean (I think that would be FK to PK) from the Table 2 Self Relationship TO.
In other words, create a new TO called Tab2 Self To Tab1
Relate it by:
Tab2 Self::FKID = Tab2 Self To Tab1:;PKID
and it shows the correct data for all of the Table 1 records. I assume that was what you intended.
Sorry for the late reply.
Thank you very much. Really helped me. :)