How to enable notification channels in custom built docker image?

I have cloned the grafana repository and built docker image using Dockerfile at the project’s root. When I run this image( docker run -p 3000:3000 grafana:latest ) and access site, notification channels page doesn’t show up. Please see below. Do I have to enable some setting or am i missing something else here?

But if I just use grafana image from dockerhub,

docker pull grafana/grafana
docker run -p 3000:3000 grafana/grafana . It has the notifications channel, please see below.

I couldn’t understand where I am making a mistake, please help.

Issue has been resolved. I was building the image from master branch and it resulted in the bugs.

When I switched to v6.3.x branch and built the image, it ran successfully.