Hi @LJB,
Welcome to the Auth0 Community!
The cached items should persist across all executions for a maximum of 24 hours.
(Reference: Actions Limitations)
When using the Actions built-in Test interface, it’s normal for the cache to be empty every run. For cache items to persist, you will need to perform a legitimate login flow. You can then monitor the cached results using the Real-time Webtask Logs Extension.
Hope this helps!
Let me know if you have any questions.
Thanks,
Rueben