--write-info-json does not work when downloading multiple illustrations from pixiv

[ChromeGames923]

The flag --write-info-json does not generate the expected json files when used to download multiple works at a time on pixiv (eg, the entire set of illustrations from a user, or a manga series). But running the exact same command on each work individually generates a json file as it is supposed to.

Is this an issue with the configuration file, because I would expect the flag to override any config options, but if this can be resolved by modifying the config file please do let me know.