The Column Aggregator takes several resets and/or edits (I'm not quite sure) to recognize that the name of an aggregated column has changed its name.
Hi Marlin,
the problem is known and will be fixed with KNIME 2.11 which will be released in December.
Bye,
Tobias
Marlin,
For the remaining days, it takes a press of "Enter" after typing the name. :)
E