Exactly same , after recent update of almost all sites Bitcoin-s , 8raa , Aalya .. all stop paying ref commissions.
With the newest update being an almost complete rewrite a lot of Faucet Owners chose to make new database when reinstalling GR8. This would explain why you would see a drop in your ref earning. Referral addresses are of course stored in the database so would make sense that you would be starting with a blank slate again. Keep promoting your faucet list and your refs will build again. Currently there are more than 350 Faucets using the new version of GR8 so there is plenty of earnings available.
-AvalonRychmon.