When running the default stats report for players with 1+ hand from FT over a wide date range I get the error attached after a long (15-20 min) delay.
My database has 276k players, and I'd expect this report to produce 100k-150k rows.
I'm running the latest beta although this error has been around for longer (I just haven't got around to reporting it)
(report used to complete in around 10 mins with a database of 200k players)