Can't see group roles when editing member relationship entities following upgrade from v1

The following info overlaps with info I just submitted in this other issue ✨ 2.3.x branch: Update version of flexible_permissions required to version 2.0 (for Core 10.3 compatibility) Active .

I think we have two separate issues, but I suppose there is a chance they are related or share the same cause.

I am attempting to upgrade a client that was on Group 1.0 and Drupal Core 10.1.

The original goal was to upgrade them to Group 2.2.x and Drupal Core 10.2.7. Now we are shooting for Group 2.3.x and core 10.3.

This problem happens in both upgrade scenarios.

When editing a group member entity, where we should see all our outsider and insider roles listed as checkable options, we see nothing (we just see the "Roles" label - but nothing beneath it). If we create a role or roles with an individual scope, we do see those listed (but as luck would have it, we have no need for individually scoped roles).

All of my prior experience with the Group module has been with version 3.0, and on sites where we have that set up, we see all group roles, so I am assuming I should see them on this site as well.

This client currently only has one insider group role, but if they ever wanted to have more than one, this would be a problem (becasue we won't be able to assign this role vs that role to the member).

So this isn't exactly a show-stopper for upgrading this site, but we would feel a lot better if this was working (and they may need additional roles in the future).