Yes, a participant can join a class if it has already started. NOTE: participants who join an existing course in progress may be left out of future Huddles (feedback groupings) which have previously been assigned. The Project Leader can review these Huddles, adjust if needed, and re-save.
An orange dot will appear in the To-Do List for components that have had a participant join a class late. This indicates to the Project Leader that not everyone will be able to complete that component.