It seems to work fine on our dev environment, could you please double check that you’ve selected correct dates on Statistics page under proof of play?
ie for example for something that is displayed now ie 15.02, to see it on stats page you will want to select 16.02 in ‘To Date’.
As for log, yes you can enable CMS debugging, display auditing then look on CMS logs page.
If that would not be enough, you can also do this How to get a Windows Player log for advanced debugging but please read it carefully.