Unable to Change Kubectl Context to my Google Kubernetes Cluster

I've created a Google Kubernetes Engine Cluster through the Cloud Console. Now I want to connect to it using kubectl from my local machine. A few weeks ago I used

gcloud container clusters get-credentials cents-ideas --zone europe-west3-a --project cents-ideas

as provided by the Cloud Console.

The output after running this command is:

Fetching cluster endpoint and auth data.
kubeconfig entry generated for cents-ideas.

But the cluster is neither in kubectl config get-contexts nor set as kubectl config current-context. I am confused because this command used to work and did nothing different.

My kubectl version:

Client Version: version.Info{Major:"1", Minor:"17", GitVersion:"v1.17.2", GitCommit:"59603c6e503c87169aea6106f57b9f242f64df89", GitTreeState:"clean", BuildDate:"2020-01-18T23:30:10Z", GoVersion:"go1.13.5", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"17", GitVersion:"v1.17.2", GitCommit:"59603c6e503c87169aea6106f57b9f242f64df89", GitTreeState:"clean", BuildDate:"2020-01-18T23:22:30Z", GoVersion:"go1.13.5", Compiler:"gc", Platform:"linux/amd64"}

and gcloud version

Google Cloud SDK 278.0.0
alpha 2020.01.24
beta 2020.01.24
bq 2.0.52
core 2020.01.24
gsutil 4.47
kubectl 2020.01.24

cat ~/.kube/config

apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: <LONG HASH>
    server: https://35.234.108.15
  name: gke_cents-ideas_europe-west3-a_cents-ideas
contexts:
- context:
    cluster: gke_cents-ideas_europe-west3-a_cents-ideas
    user: gke_cents-ideas_europe-west3-a_cents-ideas
  name: gke_cents-ideas_europe-west3-a_cents-ideas
current-context: gke_cents-ideas_europe-west3-a_cents-ideas
kind: Config
preferences: {}
users:
- name: gke_cents-ideas_europe-west3-a_cents-ideas
  user:
    auth-provider:
      config:
        access-token: <SOME TOKEN>
        cmd-args: config config-helper --format=json
        cmd-path: /snap/google-cloud-sdk/115/bin/gcloud
        expiry: "2020-02-02T09:45:19Z"
        expiry-key: '{.credential.token_expiry}'
        token-key: '{.credential.access_token}'
      name: gcp

Output of kubectl get nodes

NAME         STATUS   ROLES    AGE   VERSION
flolubuntu   Ready    <none>   42d   v1.17.2