Cannot access keycloak pod/svc with arg Dkeycloak.profile.feature.upload_scripts

When I add this parameter -Dkeycloak.profile.feature.upload_scripts=enabled into keycloak arg I cannot access keycloak anymore, any idea what might me the root cause?

pod is started well and I can access it, logs are also in good condition

ERROR after trying to access via port-forward:

k port-forward svc/keycloak-test-http -n keycloak-test 8080:80

E0810 16:11:44.265165   18500 portforward.go:400] an error occurred forwarding 8080 -> 8080: error forwarding port 8080 to pod d2046a71f0c0e0818402c1c54a08f76fc72986ac4f724aa91a49e92ac94d619d, uid : failed to execute portforward in network namespace "/var/run/netns/cni-58baccc9-e090-7a02-bce1-386caceea33a": socat command returns error: exit status 1, stderr: "2020/08/10 13:11:44 socat[101153] E connect(5, AF=2, 16): Connection refused\n"
Handling connection for 8080