A caching issue which I assume is the root cause of intermittent failures during the OCP AI install was fixed in sushy-tools 0.20.0: https://github.com/openstack/sushy-tools/commit/a2a7cf56c13861f5194f82bad0ff29e190056668

Sushy tools is not updated by dev-tools if already installed. Dev-tools also uses the system python (3.6 most likely) for this but 0.20.0 and later require at least python3.8.

Should update dev-tools to install python3.8 (or 3.9) and run sushy-tools in a virtualenv.