Update Changelog via Workflow

I’ve been trying to figure out how to successfully update my repo’s Changelog using a Bitrise workflow without any success. I am able to update the app’s build number and version number in the projects’ plists from the workflow without any issues and made sure to fetch tags for the repo as well, but when subsequently running the Generate Changelog step, no Changelog is generated. The documentation does not seem to provide any information that I’ve found helpful about what I could be doing wrong. Does anybody have an idea of what could be going wrong?