getting error "Scoring FE IP address not updated yet." when updating aks compute with internal load balancer

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### Extension name (the extension in question)
ml

### Description of issue (in as much detail as possible)
I am using the command to update the aks compute to use internal load balancer instead of externalIp load balancer.

`az ml computetarget update aks -n aksmlcompute -g $resourceGroupName -w $workSpaceName --load-balancer-type "InternalLoadBalancer" --load-balancer-subnet "aks-subnet" `

But getting an error in ml studio ""Scoring FE IP address not updated yet." Also the azureml-fe does not get updated with the internalip load balancer.
I have a subnet with name aks-subnet in my exisiting Vnet for aks

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