Trackspot indexing problem

ive been using 4 trackspots that have been working very well. all of a sudden all the color and gobo indexings are off. I know it isn't DMX addressing being off becasue the pan/ tilt/ strobe, etc all work properly. it is as if someone re-arranged all the colors on the wheel and all the gobos on the wheel, and did it the same way 4 times across all 4 units (noone has). problem is the same on an NSI control board as well as on a Hog. any ideas?
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