Storage expiry does not have a report, at least not in the sense of a log file. There is only an event ID that you posted already.
Next time you can run this SQL query to see how many items will be expired and how much disk space you will save.
USE ...
Have you tried to reload the filter and then re-start the EV services on the File Server?
On the File Server:
- fltmc unload filescreenfilter
- fltmc load filescreenfilter
- restart EV services on the File server.