Hello Mick,
thanks for testing. We will investigate if we can prevent the KNIME nodes to use the environment variable (internal ticket number AP-19786).
We are aware of the warning message. This message appears if the type of one of the column changes e.g. from int to double or Geo(Point) to Geo. Most of the time the data types are compatible e.g. int can be represented as double and Geo includes Geo(Point) and you can ignore this warning. We are working on improving the type handling logic in KNIME to no longer warn if the column types are compatible (internal ticket numbers for this are AP-19589 and AP-19838).
Bye
Tobias
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