Unable to approve a private-endpoint-connection using az network private-endpoint-connection approve Error: 'child_name_1'

[Welasco]

az feedback auto-generates most of the information requested below, as of CLI version 2.0.62

Describe the bug
Unable to approve a private-endpoint-connection using az network private-endpoint-connection approve --id --description 'Approved' it always throw an Error: 'child_name_1'.

To Reproduce
az network private-endpoint-connection approve --id '/subscriptions//resourceGroups//providers/Microsoft.Network/privateEndpoints/' --description 'Approved'

Expected behavior
To get a Private Endpoint approved in a private link service.

Environment summary
Ubuntu 20.04

azure-cli 2.29.0
core 2.29.0
telemetry 1.0.6
Extensions:
connectedk8s 1.2.0
Python location '/opt/az/bin/python3'
Extensions directory '/home/victor/.azure/cliextensions'
Python (Linux) 3.6.10 (default, Oct 8 2021, 09:26:39)
[GCC 7.5.0]

[Welasco]

Detailed message using --debug option:

cli.knack.cli: Command arguments: ['network', 'private-endpoint-connection', 'approve', '--description', 'Approved', '--id', '/subscriptions//resourceGroups/privatehub-prod-bl01-Rg/providers/Microsoft.Network/privateEndpoints/', '--debug']
cli.knack.cli: init debug log:
Enable color in terminal.
cli.knack.cli: Event: Cli.PreExecute []
cli.knack.cli: Event: CommandParser.OnGlobalArgumentsCreate [<function CLILogging.on_global_arguments at 0x7fbdb5f95c80>, <function OutputProducer.on_global_arguments at 0x7fbdb5ac17b8>, <function CLIQuery.on_global_arguments at 0x7fbdb5adf8c8>]
cli.knack.cli: Event: CommandInvoker.OnPreCommandTableCreate []
cli.azure.cli.core: Modules found from index for 'network': ['azure.cli.command_modules.natgateway', 'azure.cli.command_modules.network', 'azure.cli.command_modules.privatedns']
cli.azure.cli.core: Loading command modules:
cli.azure.cli.core: Name Load Time Groups Commands
cli.azure.cli.core: natgateway 0.002 3 6
cli.azure.cli.core: network 0.461 137 639
cli.azure.cli.core: privatedns 0.018 14 66
cli.azure.cli.core: Total (3) 0.481 154 711
cli.azure.cli.core: These extensions are not installed and will be skipped: ['azext_ai_examples', 'azext_next']
cli.azure.cli.core: Loading extensions:
cli.azure.cli.core: Name Load Time Groups Commands Directory
cli.azure.cli.core: Total (0) 0.000 0 0
cli.azure.cli.core: Loaded 152 groups, 711 commands.
cli.azure.cli.core: Found a match in the command table.
cli.azure.cli.core: Raw command : network private-endpoint-connection approve
cli.azure.cli.core: Command table: network private-endpoint-connection approve
cli.knack.cli: Event: CommandInvoker.OnPreCommandTableTruncate [<function AzCliLogging.init_command_file_logging at 0x7fbdb49771e0>]
cli.azure.cli.core.azlogging: metadata file logging enabled - writing logs to '/home//.azure/commands/2021-10-15.22-54-17.network_private-endpoint-connection_approve.19250.log'.
az_command_data_logger: command args: network private-endpoint-connection approve --description {} --id {} --debug
cli.knack.cli: Event: CommandInvoker.OnPreArgumentLoad [<function register_global_subscription_argument..add_subscription_parameter at 0x7fbdb499f158>, <function register_global_query_examples_argument..register_query_examples at 0x7fbdb4902400>]
cli.knack.cli: Event: CommandInvoker.OnPostArgumentLoad []
cli.knack.cli: Event: CommandInvoker.OnPostCommandTableCreate [<function register_ids_argument..add_ids_arguments at 0x7fbdb4902488>, <function register_cache_arguments..add_cache_arguments at 0x7fbdb4902598>]
cli.knack.cli: Event: CommandInvoker.OnCommandTableLoaded []
cli.knack.cli: Event: CommandInvoker.OnPreParseArgs []
cli.knack.cli: Event: CommandInvoker.OnPostParseArgs [<function OutputProducer.handle_output_argument at 0x7fbdb5ac1840>, <function CLIQuery.handle_query_parameter at 0x7fbdb5adf950>, <function register_global_query_examples_argument..handle_example_parameter at 0x7fbdb4902378>, <function register_ids_argument..parse_ids_arguments at 0x7fbdb4902510>]
cli.azure.cli.core.azclierror: 'child_name_1'
az_command_data_logger: 'child_name_1'
cli.knack.cli: Event: Cli.PostExecute [<function AzCliLogging.deinit_cmd_metadata_logging at 0x7fbdb4977400>]
az_command_data_logger: exit code: 2
cli.main: Command ran in 1.596 seconds (init: 0.342, invoke: 1.254)
telemetry.save: Save telemetry record of length 3133 in cache

[yonzhan]

network