When we start polling everything works as expected. Once we stop and start again $continueRefreshStudents stops working. Please check the stackblitz example. Steps to Reproduce: Start Polling (check console logs, polling continues ) Stop Polling Start Polling 2nd time (This time polling doesn't continue) https://stackblitz.com/edit/angular-ngrx-polling2?file=src/app/state/app.effects.ts Continue reading...