With more complex segment logic, in Outbound I've found myself often having to build multiple segments to build upto my desired list - which required a segment referring to a previous segment as the logic builds up. I've now found in real-time that is not possible, and would appreciate if anyone has any insight to indicate if this are due to be /fixed/ or is that now the final behaviour of real-time segments.
The behaviour is also reinforced by some wording in the information icon on the Segments tab/section when building out a segment while building a segment, we're informed that /..., it does not present segments that contain additional segments/.