A new version (v0.5) of celery-batches is available which adds support for Celery 5.1 and fixes storing of results when using the RPC result backend.

As explored previously, the RPC result backend works by having a results queue per client, unfortunately celery-batches was attempting to store the results …

https://patrick.cloke.us/posts/2021/05/24/celery-batches-0.5-released/