When using FitnessCSVProbe for a multiobjective problem fitnesses are aggregated across all axes, so the different fitnesses get merged together. The probe also does not use the built-in CSV writer; list format variables (as with multiobjective fitness) are not handled safely so they can be loaded properly later.
When using FitnessCSVProbe for a multiobjective problem fitnesses are aggregated across all axes, so the different fitnesses get merged together. The probe also does not use the built-in CSV writer; list format variables (as with multiobjective fitness) are not handled safely so they can be loaded properly later.