rebuild_article_search_data management command not working properly

[osamana]

I set up Django CMS with aldryn-newsblog and installed haystack and aldryn-search. run python manage.py rebuild_index.
only new articles I add are searchable, already created articles are not searchable !!.
running the management command rebuild_article_search_data does nothing, however.

the only solution is that I open the django shell and run .save() on all Article objects for that to work.
the problem is with the rebuild_article_search_data command.
I can give you more related data regarding the issue, help, please.
Thank you.

[CP-SiNGH]

This has just hit me too :(

Using:
Aldryn-Django v1.11.15.1
Aldryn-Django-CMS v3.5.2.2
Aldryn-NewsBlog v2.1.1

A thing that makes this more complicated is that we're using the Divio platform, so running django shell & running commands against the data directly is not possible as it's a dockerised platform, and we can't interact with the live container directly (platform design decision).

O_O