I'm assuming that this is something todo with how django-pyscss behaves under DEBUG mode:
https://github.com/fusionbox/django-pyscss specifically: In DEBUG mode, DjangoScss will search using all of the finders to find the file. If you are not in DEBUG mode, it assumes you have run collectstatic and will only use staticfiles_storage to find the file. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to horizon in Ubuntu. https://bugs.launchpad.net/bugs/1379761 Title: Asset compression does not happen unless debug mode is enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/horizon/+bug/1379761/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs