@loyukfai Strange indeed. We are using the Action Scheduler’s interval feature, and we don’t have fine-grained control over the interval execution, as it has an enqueue and priorities mechanism built-in within (executing tasks with higher priorities first).
I see 2 potential reasons why this issue might happen for you:
1. Some other tasks were running with the higher priority and the enqueue became available only at 12:06 (if this is the case, you will find many tasks in Tools -> Scheduled Actions for that night)
2. Or maybe the site did not get any visitors during the night (in this case, you will find no or just a few tasks for that night).
I suppose that is #2 and your site simply get no / not enough visitors that night.
You can try setting up a server-side CRON job to visit your site every hour, I think that will help. If it does not help, then I can add a setting to the plugin to set the higher task priorities for the warming intervals.
Here’s how to setup a CRON job, if needed: https://chat.openai.com/share/34509d2e-1ab4-4aeb-8f6f-dae53ba5b9d3