It works right until the last step then fails.
Unable to process template language expressions in action 'Add_a_row_into_a_table' inputs at line '0' and column '0': 'The template language expression 'body('Get_response_details')?['responder']' cannot be evaluated because property 'responder' cannot be selected. Array elements can only be selected using an integer index. Please see https://aka.ms/logicexpressions for usage details.'.

