Deploying with DAB is completely independent of branch you are using. I usually deploy in my DEV environment with features or DEV branches and everything is OK. I'd say you deployed previous job from master branch and then, you are not updating those jobs but creating new ones (or something similar). So, remember that you must assign same identifiers to deployed resources, by assigning only same names is not OK as new jobs will be created instead of "updating" those with same names. I hope this cloud help.