Adapter cell issue

Hi

I am having issues using nodes that generate a new structure when the input column has an RDKit or CDK adapter cell representation present. 

I've tried a few nodes:

- Generate 2D coordinates and highlight fail if the RDKit or CDK representation is in the adapter value map 

- Canonical SMILES and Indigo fingerprint work

The problem seems to happen if Indigo outputs a new structure column. 

 

Error in the console: 

 

ERROR KNIME-Worker-5 Highlighter Execute failed: Runtime class of object "

  -INDIGO-10141614272D

 

  0  ..." (index 0) in row "Row0" is Molfile and does not comply with its supposed superclass Molfile

Cheers

Sam