After importing ACCDB in RCDC, Few shear Walls which are originally part of Combined walls, are not identified in RCDC file

Below is the actual Geometry of Combined wall layout at the bottom most level - as per the Analysis Model 

There are multiple levels at which the Geometry i.e. the Shape and arms of the Combined wall is changing.

The Combined wall is getting split into multiple standalone wall.

 

Ex. Refer to pier label P9 at 1 level above the Bottom most level.

This wall which was a part of the combined wall is now a single shear wall from this Level and above. 

At this point, we need to assign a separate pier label for this wall say 

P9-New1. Further, maintain this pier label till this wall remains as a single wall only and is not splitting. The moment this single wall gets split into 2 walls, provide a separate pier label for the 2nd arm of the split wall.