circleci fails on some PRs seemingly because the jobs are not running in the emscripten-core org

We use some paid-only resources so when jobs run under individual contributors accounts will fail.

For example: #20417

Here is a sample failure URL: https://app.circleci.com/pipelines/github/ericoporto/emscripten/11/workflows/9db52de3-edd6-4d07-95a2-3df36ef3b6c7/jobs/100

"Resource class docker for xlarge is not available for your project, or is not a valid resource class. This message will often appear if the pricing plan for this project does not support docker use."

I can't see any difference between the PRs where things work as expected and the PRs where it fails. Perhaps its a bug in circleCI or perhaps its certain contributors who have certain types of personal circleci accounts?