Unable To Delete Virtual Network and a Resource Group

Azure resource Group delete  error case of a virtualNetworks(wscunicore-efd8474f96-vnet)

I think the reason is the same with https://video2.skills-academy.com/en-us/answers/questions/169500/unable-to-delete-virtual-network-and-a-resource-gr

I have sent email but replay with below

Currently this DL is in unmonitored state and would request you to follow up on your existing MS Q&A thread private message if you don’t have an active thread, request you to open a new thread on Q&A platform for your query/issue with appropriate service area tag so that one of the community experts will reach you shortly for further assistance - https://video2.skills-academy.com/en-us/answers/index.html .

  az group delete --name  vse_unicore

(ResourceGroupDeletionBlocked) Deletion of resource group 'vse_unicore' failed as resources with identifiers 'Microsoft.Network/virtualNetworks/wscunicore-efd8474f96-vnet' could not be deleted. The provisioning state of the resource group will be rolled back. The tracking Id is '0ea861ab-593e-4f64-b546-9e17986213b7'. Please check audit logs for more details.      

Code: ResourceGroupDeletionBlocked

Message: Deletion of resource group 'vse_unicore' failed as resources with identifiers 'Microsoft.Network/virtualNetworks/wscunicore-efd8474f96-vnet' could not be deleted. The provisioning state of the resource group will be rolled back. The tracking Id is '0ea861ab-593e-4f64-b546-9e17986213b7'. Please check audit logs for more details.

Exception Details:      (None) {"error":{"code":"InUseSubnetCannotBeDeleted","message":"Subnet wscunicore-efd8474f96-dbsubnet is in use by /subscriptions/[]/resourceGroups/vse_unicore/providers/Microsoft.Network/virtualNetworks/wscunicore-efd8474f96-vnet/subnets/wscunicore-efd8474f96-dbsubnet/serviceAssociationLinks/80bb0984-878c-5c12-a7ce-e0eb677b7d60-sal and cannot be deleted. In order to delete the subnet, delete all the resources within the subnet. See aka.ms/deletesubnet.","details":[]}}

        Code: None

        Message: {"error":{"code":"InUseSubnetCannotBeDeleted","message":"Subnet wscunicore-efd8474f96-dbsubnet is in use by /subscriptions/[]/resourceGroups/vse_unicore/providers/Microsoft.Network/virtualNetworks/wscunicore-efd8474f96-vnet/subnets/wscunicore-efd8474f96-dbsubnet/serviceAssociationLinks/80bb0984-878c-5c12-a7ce-e0eb677b7d60-sal and cannot be deleted. In order to delete the subnet, delete all the resources within the subnet. See aka.ms/deletesubnet.","details":[]}}

        Target: /subscriptions/[]/resourceGroups/vse_unicore/providers/Microsoft.Network/virtualNetworks/wscunicore-efd8474f96-vnet

 az resource delete --ids "/subscriptions/【】/resourceGroups/vse_unicore/providers/Microsoft.Network/virtualNetworks/wscunicore-efd8474f96-vnet/subnets/wscunicore-efd8474f96-dbsubnet/serviceAssociationLinks/80bb0984-878c-5c12-a7ce-e0eb677b7d60-sal" --verbose