Problem

Users are unable to edit the space permission even though they are the space administrator. Only the system admin can edit the space permission.

Environment

• Confluence 8.5.1

Steps to Reproduce

1. Install Confluence 8.5.1 DC.
2. Logged in to Confluence as an administrator.
3. Add a new user (e.g., test1) to the confluence-users group.
4. Logged in as the test user.
5. Create a space (regardless of the space type).
6. Click on the space tool > Permissions.
7. Click on the Edit Permissions button.

The demo video is attached, this function is not working, even in a personal space:

Expected Results

The space administrator should be able to edit the permission after the authentication.

Actual Results

Not Permitted

Workaround

There is no workaround available at the moment.

Notes

This issue only affected 8.5.1.

Confluence Version	Is Affected
Confluence 7.19.12
Confluence 7.19.14
Confluence 8.5.0
Confluence 8.5.1