Ionic pro auto build not working for non-master branches

I don’t know if anybody got this to work but I enabled github integration & automatic builds for ionic pro for 2 branches: “Master” and “Feature”.
If I push to github to master branch then a new build is started. All good!
If I push to “Feature” then no build is started. No good!

Anyone else experienced this?

I’m 100% sure that I have configured the settings correctly and selected “master” and “Feature” as the branches to auto build.