criticalcss.com page CCSS cache ?

Hi.

From the job queue TL;DR :

Autoptimize CriticalCSS Power-Up constantly query the queue for N jobs. When it finds one, gears spins and jobs becomes P while they are running and criticalcss.com doesn’t return a result.

This works.

In the criticalcss.com “generate” page, I can see which CCSS are generated for each page. Generally, I delete them, since they are already sent back to AO.

But old page in “N” when ao_ccss_queue runs, are removed directly, and no new entry in the generate page can be seen.
Is there a kind of cache on the criticalcss.com side ? In case how can I access/flush it ?

F.