CircleCI doesn't start the build

The builds were working fine before.
I’m the only one working on this project and I’m sure I didn’t change anything in configuration.
About few hours ago, I merged a feature branch to develop branch which actually deploys to test environment - this worked fine.
Now - when I merged the changes from develop to master, the build doesn’t trigger. I can see the master branch updated in GIT. But, the build has not started or queued. It looks strange.

Any help would be highly appreciated.


Looks strange.

I made a simple change on local master branch and pushed it to remote branch which triggered the build.

Hopefully it will be good from now onwards.