Local persistent volume - unable to configure Node Affinity

Rancher
1

I want to add the following rule to my Node Selector via Rancher GUI:
Key: kubernetes.io/hostname
Operator: in list
Values: my-node-1

When clicking on Save I am receiving the following error:
Validation failed in API: PersistentVolume “my-volume” is invalid: nodeAffinity: Invalid value: core.VolumeNodeAffinity{Required:(*core.NodeSelector)(0xc007efbc80)}: field is immutable

I am able to save the following rule in the same Node Selector:
Key: hostname
Operator: in list
Values: my-node-1

Of course my pod is not coming online because of this event:
Warning
FailedScheduling
0/2 nodes are available: 1 node(s) didn’t match node selector, 1 node(s) had volume node affinity conflict.

When I add custom label named Hostname to my-node-1 everything works as expected.

What am I doing wrong?

Edit:
I was able to create correct PV via kubectl.

cat > test-ssd-volume.yaml << EOF
apiVersion: v1
kind: PersistentVolume
metadata:
  name: test-ssd-volume
spec:
  capacity:
    storage: 2Gi
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  volumeMode: Filesystem
  storageClassName: local-ssd
  local:
    path: /mnt/local-storage/ssd/disk1
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - my-node-1
EOF

kubectl create -f test-ssd-volume.yaml

Created PV looks fine in Rancher GUI.