Cleaner with Ultimate Cron

Hello,
I was unsure of which category to chose for this topic, you can edit it if I did not pick the right one.

I'm using both Cleaner and Ultimate Cron on my website. I noticed that setting up the interval in the Cleaner Configuration page had no effect. The cron job was executed but no cache table were cleared. To make it work, I set the module to run on every cron call, then I set up the scheduler of the cron task correspondig the the cleaner module in the Ultimate Cron job list.
I don't think it is a bug of the Cleaner module, but it could be good to include this information into the module documentation.