Problem when creating a service through command-line: service name is empty

I am following the tutorial to install the Wallaby services on two machines running Ubuntu 20.04. I noticed that when I created the service for glance, the service name was empty. Now I confirmed that there should be a problem with the command-line once the placement service name is also empty:

openstack service list
+----------------------------------+----------+-----------+
| ID | Name | Type |
+----------------------------------+----------+-----------+
| 4a50934c617c4ae9a36648ccab5fb11e | | placement |
| 8318ed8175a641be935b243869b2399e | keystone | identity |
| deb4b7f24a4a46898cf22b89be6c78a9 | | image |
+----------------------------------+----------+-----------+

Both services were created specifying a name ("--name glance" and "--name placement" to the "openstack service create" command).

This bug tracker is for errors with the documentation, use the following as a template and remove or add fields as you see fit. Convert [ ] into [x] to check boxes:

- [ ] This doc is inaccurate in this way: ______
- [ ] This is a doc addition request.
- [ ] I have a fix to the document that I can paste below including example: input and output.

If you have a troubleshooting or support issue, use the following resources:

 - The mailing list: https://lists.openstack.org
 - IRC: 'openstack' channel on OFTC

-----------------------------------
Release: on 2021-07-19 07:23:22
SHA: 27d033008d367f02010a9b6b7fddfc30d2a017c7
Source: https://opendev.org/openstack/openstack-manuals/src/doc/install-guide/source/openstack-services.rst
URL: https://docs.openstack.org/install-guide/openstack-services.html