"He who marches out of step hears another drum." ~ Ken Kesey
Is it possible there was inconsistent pressure, or something crudding up the screen in a way that made the amount of ink coming through it inconsistent? I have had this problem once or twice due to ink drying slightly in areas of a screen with a ghost image and it is only visible on large coverage.
As long as your saturation is consistent I'd be looking at the garments. To be completely honestwe've not had the best luck with either of those brands and discharge. White on Alstyle tendsto be rather beige, and Next Level can just plain not co-operate sometimes.We run our red mix at %5 activator contrary to most.
Could it be a variation of zombie-skin? What is the print order of the colors.
If the other INK colors discharged great, in the same area, then it's the ink or your application.
Did you run them back through and see if it went away? The only problem that I have had with their red was an inconsistent cure. Those days are gone with the new dryer.