Composer still installing 6.0.0-beta1

I tried multiple times on multiple drupal installs and I can't reproduce this. Can you tell a bit more about the different versions of, for instance, Drupal, PHP, etcetera?

Is the problem that it is pulling beta 1 instead of a more recent beta? I am seeing this too.

Can you give some more detail? About the Drupal version etc?

If I run composer require 'drupal/o365:6.0.0-beta5', I get:

Your requirements could not be resolved to an installable set of packages.

Problem 1
- Root composer.json requires drupal/o365 6.0.0-beta5 -> satisfiable by drupal/o365[6.0.0-beta5].
- drupal/o365 6.0.0-beta5 requires drupal/o365_sso * -> satisfiable by drupal/o365_sso[2.0.0, ..., 2.0.6, 3.0.0, ..., 3.0.25, 5.0.0, ..., 5.0.22].
- drupal/o365_sso[2.0.0, ..., 2.0.6] require drupal/o365 ^2 -> found drupal/o365[2.0.0, ..., 2.0.6] but it conflicts with your root composer.json require (6.0.0-beta5).
- drupal/o365_sso[3.0.0, ..., 3.0.25] require drupal/o365 ^3 -> found drupal/o365[3.0.0, ..., 3.0.25] but it conflicts with your root composer.json require (6.0.0-beta5).
- drupal/o365_sso[5.0.0, ..., 5.0.22] require drupal/o365 ^5 -> found drupal/o365[5.0.0-beta1, ..., 5.1.0-beta1] but it conflicts with your root composer.json require (6.0.0-beta5).

So, it thinks that o365 6.0.0-beta5 needs to install a o365_sso project, but that isn't a separate project. It won't install that because the version doesn't match. For some reason, this doesn't happen with beta1. I don't see any obvious changes since beta1 that would cause this.

Hmmm, that really weird. I just did a clean install and actually could reproduce this. I will start to debug and let you know!

It might be something broken about the drupal.org Composer facade.

Okay, so I added the o365_sso module to the dependencies of the o365 module. This made the composer loophole. The dependency was added in the beta2. This is now reverted, and the beta6 release has been made: https://www.drupal.org/project/o365/releases/6.0.0-beta6