CNC Nesting - Maintaining indexing while nesting using OpenNest

I have managed to use open nest to unroll objects flat and assign indexed numbers as follows..

However, when i proceed to actually nest the objects on a sheet the main object nests as intended, but the indexed number and letter does not transform correctly. As follows..

I attempted using the transform tool to map the indexing information from the original pieces onto the new nested pieces and this is where the error takes place.. I know this is a data management issue but I cant wrap my head around how to solve this.. In my attempt below the red box is the merged indexing information and the blue box is the pieces being nested..

Attached are the files.

forum2.0.3dm (18.0 MB)

ceiling feature 6.gh (67.0 KB)

Thank you in advance for any guidance.