[Bug] LDAP Groups not correctly integrated

Groups that were created from the ldap-integration are only semi-useable currently (NC 27.1.0 RC2, LDAP user backend 1.17.0).

They do not appear in the administration’s user-tab
https://i.imgur.com/yWKMlqq.png

And only in group-folders if applied on NC 26)

Users see these groups on their profile and can access group-folders according to above specification.
https://i.imgur.com/esYAQkj.png

Ldap-integration shows these groups as being found however

As mentioned in this post I am seeing an error when trying to access the group-list.

Edit: Some pictures are on greenshot since I am a new user and can only have two embeds.