The reports being run by SSRS are not being logged in the ExecutionLog table correctly any more. It used to log every report execution but approx three months ago it stopped logging all reports and now only logs those reports run by scheduled job. I have checked the equivalent non production installation whoch should be configured the same but it works fine. I assume that some miscreant has made a change that has stopped it working, but now I need to find the change and make it go again. I have checked everything that I can think of but have come up blank
Can anyone please point me in the right direction?