Are these live research results?
The current collections contain source references and research questions. The date records a source-documentation review, not a refresh of every upstream article or score.
Where are my reading profiles saved?
In the files you download. The builder does not save account settings or configure hosted schedules. Keep a separate pair of files for each agent.
A source changed while I was building.
Reload the collection directory, review your choices and build again. An old selection is not silently expanded to include new sources.
The download did not finish.
Your selections stay on the page after a failed request. Build again when the service is available. Do not use a file whose integrity check failed.
Can I use sources that need a key?
A collection can describe such a source. Access comes from your own provider account and permissions; never put provider keys into an agent label or feed URL.