With docker compose login instructions not able use apicurio studio

[cloudbackenddev]

I followed https://github.com/Apicurio/apicurio-studio/tree/82a0f2a0147f1fbee0854ba7fbeb84ef1e78ff16/distro/docker-compose instructions

I had to add following environment properties in the .env file. Once started I created user in keycloak under apicurio and microks realm. When it try to login I keep getting the spinner as attached. There are no errors during login in the logs. Am i missing something. Can you provide some pointers?

MR_SPRING_PROFILES_ACTIVE=prod
MR_SPRING_DATA_MONGODB_URI=mongodb://mongo:27017
MR_SPRING_DATA_MONGODB_DATABASE=microcks
MR_POSTMAN_RUNNER_URL=http://postman:3000
MR_TEST_CALLBACK_URL=http://localhost:8900
MR_KEYCLOAK_URL=http://localhost:8080