The recent work widget on a worker’s homepage is populated in the following way:
The 5 most recently updated steps will be list, using only the last_updated_on and workflow_step_id values for ordering.
Among these 5 steps, the most recently updated (by the logged in worker) will be at the bottom of the list, and the one with the earliest last_updated_on date at the top.
If you'd like this logic to be changed, please raise a request on AHA.