This is a minor QOL thing, but something that might not be so obvious to everyone.
After adding a new host to monitoring, then installing and registering the agent, there is no indicator telling you that before running cmk-update-agent.exe -v, you have to bake and sign the agents. If you don’t bake and sign them, it just says that there is no agent available for download.
If you make any changes to agent rules, the bake agents button turns orange. If you register a new host, it doesn’t tell you to do anything.