Could anyone explain why a task run concurrency limit I have set still shows active task runs although no tasks are currently running? My limit is 8 slots and it shows 7 active task runs. If I were to run my flow it would run 1 task every 30 seconds. Thoughts?

Hey, there a couple edge cases where a task may not be able to release it's concurrency slot. Theres already some active work to resolve it. You should be able to clear the concurrency slots with:

$ prefect concurrency-limit reset <tag>

If this is recurring I'd definitely recommend opening an issue, as it will help to get it resolved!