Terraform import error retrieving Virtual Machine Scale Set created from an image - import

Question

I'm trying to import a Linux VM Scale Set that was deployed in the Azure Portal from a custom shared image, also created in the portal. I'm using the following command:
terraform import module.vm_scaleset.azurerm_linux_virtual_machine_scale_set.vmscaleset /subscriptions/00000000-0000-0000-0000-000000000000
/resourceGroups/myrg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1
Import fails with the following error:
Error: retrieving Virtual Machine Scale Set "vmss1" (Resource Group "myrg"): properties.virtualMachineProfile.osProfile was nil
Below is my VM Scale set module code
data "azurerm_lb" "loadbalancer" {
name = var.lbName
resource_group_name = var.rgName
}
data "azurerm_lb_backend_address_pool" "addresspool" {
loadbalancer_id = data.azurerm_lb.loadbalancer.id
name = var.lbAddressPool
}
data "azurerm_shared_image" "scaleset_image" {
provider = azurerm.ist
name = var.scaleset_image_name
gallery_name = var.scaleset_image_gallery
resource_group_name = var.scaleset_image_rgname
}
resource "azurerm_linux_virtual_machine_scale_set" "vmscaleset" {
name = var.vmssName
resource_group_name = var.rgName
location = var.location
sku = var.vms_sku
instances = var.vm_instances
admin_username = azurerm_key_vault_secret.vmssusername.value
admin_password = azurerm_key_vault_secret.vmsspassword.value
disable_password_authentication = false
zones = var.vmss_zones
source_image_id = data.azurerm_shared_image.scaleset_image.id
tags = module.vmss_tags.tags
os_disk {
storage_account_type = var.vmss_osdisk_storage
caching = "ReadWrite"
create_option = "FromImage"
}
data_disk {
storage_account_type = "StandardSSD_LRS"
caching = "None"
disk_size_gb = 1000
lun = 10
create_option = "FromImage"
}
network_interface {
name = format("nic-%s-001", var.vmssName)
primary = true
enable_accelerated_networking = true
ip_configuration {
name = "internal"
load_balancer_backend_address_pool_ids = [data.azurerm_lb_backend_address_pool.addresspool.id]
primary = true
subnet_id = var.subnet_id
}
}
lifecycle {
ignore_changes = [
tags
]
}
}
The source image was created from a Linux RHEL 8.6 VM that included a custom node.js script.
Examination of the Scale Set in the portal does indeed show that the virtualMachineProfile.osProfile is absent.
I haven't been able to find a solution on any forum. Is there any way to ignore the error and import the Scale Set anyway?