@cassandrahl I had a play with your project and had some success. I replaced runs-on in the GitHub workflow file from windows-latest to ubuntu-latest and that caused the tests to pass on a forked version of your repo. I’m not entirely sure why it would be the case that windows fails but ubuntu passes, but I’d recommend sticking with linux for GitHub Actions as they tend to be less bloated and more performant OS for infrastructure pipelines.
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