Go to your service settings in the project, and you'll be able to change the target branch through the setting Branch connected to production in the Source section.

Same thing happening to me, I have tried in different projects and different users

Have you tried again recently? This was down earlier but recently worked for me

I have integrated my railway to github yet non of my repo is showing on railway. I have granted access for it to see all my repos yet non is seen.

Not working from me. Anyone find a fix?