See attached image of a matched pair. Any idea why it's not being generated as a H --> CH3 pair? Both the "matched molecular pair (RDKit)" and "automated matched pairs" node behave the same way. I do have "add H's prior to fragmentation" turned on the MMP (RDKit) node, and I've also first converted the molecules to Canonical smiles to double-check.
Thanks,
Natasja