Jobs
Jobs opens the job dashboard of the bot services in a new browser tab. The bot services run the scheduled and background work of the platform (for example the schedules of the pipeline triggers) as jobs; the dashboard shows them.
Open it with Operate > Jobs (role Development). Studio adds your sign-in to the link, so the dashboard opens without another login.
The dashboard is a Hangfire dashboard. Its usual lists tell a failed run from a pending one: Enqueued and Scheduled jobs are pending, Processing jobs are running, Succeeded jobs are done and Failed jobs show the exception that caused the failure. A failed job can be retried from there.
Failures of the platform services also appear in Events. How the Bot Service runs triggers is described in Pipeline triggers in the Technology Guide.