hi,  I can't reproduce the bug you described, like below. 
So, I guess there is a problem with the osc_lib package on your environment and you need to upgrade it?

root@haixin-devstack:~# openstack share network list
+--------------------------------------+---------------+
| ID                                   | Name          |
+--------------------------------------+---------------+
| 0694dbf4-690f-41f4-8d34-2a0fb828c2ce | just_for_test |
+--------------------------------------+---------------+
root@haixin-devstack:~#
root@haixin-devstack:~# openstack share network show just_for_test
+-----------------------------------+-------------------------------------------------------------------------------+
| Field                             | Value                                                                         |
+-----------------------------------+-------------------------------------------------------------------------------+
| created_at                        | 2024-05-29T08:54:06.438175                                                    |
| description                       | None                                                                          |
| id                                | 0694dbf4-690f-41f4-8d34-2a0fb828c2ce                                          |
| name                              | just_for_test                                                                 |
| network_allocation_update_support | True                                                                          |
| project_id                        | 714198c7ac5e45a4b785de732ea4695d                                              |
| security_service_update_support   | True                                                                          |
| security_services                 |                                                                               |
| share_network_subnets             |                                                                               |
|                                   | id = 35373653-7e10-446c-b56c-184d9378fff9                                     |
|                                   | availability_zone = None                                                      |
|                                   | created_at = 2024-05-29T08:54:06.662712                                       |
|                                   | updated_at = None                                                             |
|                                   | segmentation_id = None                                                        |
|                                   | neutron_net_id = None                                                         |
|                                   | neutron_subnet_id = None                                                      |
|                                   | ip_version = None                                                             |
|                                   | cidr = None                                                                   |
|                                   | network_type = None                                                           |
|                                   | mtu = None                                                                    |
|                                   | gateway = None                                                                |
|                                   | properties = <osc_lib.cli.format_columns.DictColumn object at 0x7fd8c3fb3f40> |
| status                            | active                                                                        |
| updated_at                        | None                                                                          |
+-----------------------------------+-------------------------------------------------------------------------------+
root@haixin-devstack:~# ^C
root@haixin-devstack:~#