The same steps give me a different outcome. I guess I must be running an older version of cinder:

$ openstack volume type list
+--------------------------------------+--------------------+-----------+
| ID                                   | Name               | Is Public |
+--------------------------------------+--------------------+-----------+
| 17593eb4-a4d2-4464-82ea-af22c49f4105 | stable1-az2        | True      |
| 3421912b-0ebc-4c53-b318-a95edfe3eb86 | arbor-az1          | True      |
+--------------------------------------+--------------------+-----------+

$ openstack volume type list --default
+--------------------------------------+-----------+-----------+
| ID                                   | Name      | Is Public |
+--------------------------------------+-----------+-----------+
| 3421912b-0ebc-4c53-b318-a95edfe3eb86 | arbor-az1 | True      |
+--------------------------------------+-----------+-----------+

$ openstack volume create --type stable1-az2 --size 1 david-stable1-az2-volume1
+---------------------+--------------------------------------+
| Field               | Value                                |
+---------------------+--------------------------------------+
| attachments         | []                                   |
| availability_zone   | zone2                                |
| bootable            | false                                |
| consistencygroup_id | None                                 |
| created_at          | 2020-10-16T18:38:05.000000           |
| description         | None                                 |
| encrypted           | False                                |
| id                  | 7b1f4f0b-61d5-44c5-8c47-8828de477afc |
| migration_status    | None                                 |
| multiattach         | False                                |
| name                | david-stable1-az2-volume1            |
| properties          |                                      |
| replication_status  | None                                 |
| size                | 1                                    |
| snapshot_id         | None                                 |
| source_volid        | None                                 |
| status              | creating                             |
| type                | stable1-az2                          |
| updated_at          | None                                 |
| user_id             | f2ee9e8060e54d058060d220fab84088     |
+---------------------+--------------------------------------+

$ openstack volume list | grep david
| 7b1f4f0b-61d5-44c5-8c47-8828de477afc | david-stable1-az2-volume1 | available |    1 |                                        |

$ openstack volume snapshot create --volume david-stable1-az2-volume1 david-stable1-az2-volume1-snap1
+-------------+--------------------------------------+
| Field       | Value                                |
+-------------+--------------------------------------+
| created_at  | 2020-10-16T18:38:40.904359           |
| description | None                                 |
| id          | 23dfa183-1290-4c76-9aae-a35f53d94c6e |
| name        | david-stable1-az2-volume1-snap1      |
| properties  |                                      |
| size        | 1                                    |
| status      | creating                             |
| updated_at  | None                                 |
| volume_id   | 7b1f4f0b-61d5-44c5-8c47-8828de477afc |
+-------------+--------------------------------------+

$ openstack volume snapshot list | grep david
| 23dfa183-1290-4c76-9aae-a35f53d94c6e | david-stable1-az2-volume1-snap1 | None        | available |    1 |

$ openstack volume create --snapshot david-stable1-az2-volume1-snap1 david-stable1-az2-volume1-snap1-volume1
Invalid input received: Invalid volume_type provided: 3421912b-0ebc-4c53-b318-a95edfe3eb86 (requested type is not compatible; recommend omitting the type argument). (HTTP 400) (Request-ID: req-ed37e9ba-658f-4cc8-876d-a4c0d3dae9fd)


I am using cinder version 2:15.3.0-0ubuntu1~cloud0 from the bionic-train Ubuntu Cloud Archive on Ubuntu 18.04.