Question about automated matched pairs combination with rdkit chemical transformation.

Dear all,

I want to make new chemical structures using Erlwood MMP node and RDKit Chemical Transformation node.

I tried to make structure generator using  Erlwood Automated Matched Pairs node, and RDKit Chemical Tranfromation.

But this workflow did not work well. ( I got only hydrogen as transformed molecule.)

Any advice and suggestions will be greatly appreciated.