Schedule Revision is not working

Hello There,

I am using free version and tried schedule revision and also checked https://publishpress.com/knowledge-base/scheduled-revisions/ and setup timezone same as server to wp admin side but still some scheduled is missed.

Here is the link you can check :
https://share.cleanshot.com/jxejPWlnbeWb8cbE4hBH
https://share.cleanshot.com/EfB9Fb4b3BUZjn6wZa9X
https://share.cleanshot.com/bSW2UflfoFF3FemmAODr