Prune Database on 1st of Month

We set this scheduler as active a couple months ago, but recently noticed it hasn't run(at least to the best of our knowledge.)

It's set in crontab notation as 041** which I guess translates to 4am on the 1st of every month.

However, even though it is set as "active" it states that the Last Successful Run was "Never."  Is there somewhere I can look to see whether it's trying to run and failing?  Or whether it's just not even attempting to run?  Other Sugar Schedulars have run with no issue.