Here's what you should do to resolve the situation: 1. Ensure you have an active worker:

bash
   prefect worker start -p "your-work-pool-name"

2. Check your flow runs' status: - Go to the Prefect UI - Look at the flow runs that are marked as "Late" - Verify their scheduled start times and work pool assignments 3. Options to handle late flows: - Let them run: If you start a worker for the appropriate work pool, the late flows will be picked up and executed in order - Cancel and recreate: If you don't want the late flows to execute, you can cancel them from the UI and create new ones - Manual trigger: You can manually trigger new flow runs from the UI or CLI if you don't want to wait for the scheduled ones 4. Prevent future issues: - Ensure you always have at least one worker running for your work pool - Verify that your deployment's schedule configuration is correct - Check that your system time is properly synchronized across all components If you need help with any specific part of this process or would like to check specific flow run details, please let me know. Also, it would be helpful if you could share: - Which work pool your flows are assigned to - Whether you currently have any workers running - The scheduling configuration of your deployments This would allow me to provide more targeted assistance.

Yes! The concurrency limits are very likely the cause of your issue. Here's what's happening: 1. Why flows are marked "Late": - When a flow run can't start immediately due to concurrency limits, it gets queued - If the scheduled start time passes while the flow is waiting, it gets marked as "Late" - The "Late runs" queue is specifically holding these delayed flow runs 2. How to check and fix: a) Check current concurrency limits: - Look in the UI under your work pool settings - Check both the work pool and work queue concurrency limits - You can also use the CLI:

bash
     prefect work-pool inspect YOUR_WORK_POOL_NAME

b) Adjust the limits: - If needed, increase the concurrency limit using either:

bash
     prefect work-pool set-concurrency-limit YOUR_WORK_POOL_NAME --limit NUMBER

- Or through the UI: - Navigate to Work Pools - Select your work pool - Click on the settings/edit button - Adjust the concurrency limit 3. Best practices: - Set concurrency limits based on your system's actual capacity - Consider both resource constraints and business requirements - Monitor queue lengths to adjust limits appropriately Would you like me to help you: 1. Check your current work pool's concurrency settings? 2. Calculate an appropriate concurrency limit based on your system? 3. Adjust the limits to allow more concurrent runs? Please let me know which aspect you'd like to focus on, and share your work pool name if you'd like specific commands to manage its settings.