What could cause the Start Review button to be missing from the Review Queues card?

The missing Start Review button from the Review Queues card can be attributed to the queue being paused. When a review queue is paused, it is not in an active state, which prevents the initiation of any review processes. This is a designed feature to ensure that users cannot begin reviews on a queue that is not currently operational, thereby maintaining organizational integrity and preventing potential confusion or errors during the review process.

Understanding this scenario is key to managing workflows effectively, as it highlights the importance of checking the status of the review queue before attempting to start a review. Other factors, such as permissions or the number of reviewers, may influence access to the queue but do not directly correlate to the absence of the Start Review button as decisively as a paused state does.