I'm not certain. Do you have a scanning or security tool in place that could be killing processes in the container?

Found this issue. I was running docker in rootless mode. As a result, the Machine was killing the process that we ran in a particular session. Solution: You need to set lingering mode through loginctl to prevent user processes to be killed once the user session completed. https://github.com/containers/podman/blob/main/troubleshooting.md#17-rootless-containers-exit-once-the-user-session-exits

Just got back from travel and saw this, glad you were able to figure it out!