Making groups in a subgroup of your main edition

So I tried making groups in a subgroup, because I wanted them all together (to be able to set different user rights later) and not have them interfere with the other projects we set-up for the course.

So for the following Gitlab URL: https://gitlab.ewi.tudelft.nl/in4315/2023-2024/groups
Which in Gitbull should have this as course path: in4315
And this as edition path: 2023-2024/groups

This gives a "Failed to create GitLab group for edition" error. When it should just make a subgroup called "groups".