Alright, I tried testing it out by commenting out the code for generating new csv's, so for successive runs the CSVs are identical. However, when I use dataset.add_files() it still generated a new version of the dataset.

# log the data to ClearML if a task is passed
        if self.task:
            self.clearml_dataset = Dataset.create(dataset_name="[LTV] Dataset")
            self.clearml_dataset.add_files(path=save_path, verbose=True)
            if self.tags is not None:
                self.clearml_dataset.add_tags(self.tags)
            self.clearml_dataset.upload(
                show_progress=True,
                verbose=True,
            )
            self.task.connect(self.clearml_dataset)
            self.clearml_dataset.finalize()
            logger.info(f"Saved the data to ClearML.")