Hi @jasonfb,
Thanks for bringing this to our attention. Can you try using a next-generation ruby image instead of circleci/ruby:2.7.4-node-browsers and let me know if this resolves the issue? You can find all available next-generation ruby images here: cimg/ruby - CircleCI
We are deprecating legacy convenience images. You can read more about this here
Additionally, please feel free to share a build link either here or by opening a support ticket.