The reboot that @Goyo mentioned is more than just a rerun. Rerunning (even 12 hours later) does not restart the Streamlit server. In local development, you’d need to Ctrl+C to stop the server then streamlit run ... again to restart the Streamlit server to pick up ALL changes to config.toml. For Community Cloud, you have to reboot, which will rebuild the Python environment and start the Streamlit server from a new process.