Mass Back Out of processed LE

Summary

Need to Back Out Open LE

Content

In my Test environment, I had run Evaluate Schedule LE and defaults have been assigned on 9/7/18 for Open Enrollment Period of 08/30/18-11/12/18 for effective date of  1/1/19. Changes were made to coverages and now I need to mass back out to void and re-run. 

I kept getting zero records processed using various date combination. What am I missing?