Out of two board you only stopped 3 times for adjustment and had a total of 26 pairs of earrings lost?
I will give you benefit of the doubt of negligence vs incompetence. However, if you actually want a solution, I do have one for you. Check out this post. Your machine actually does have coordinates that hold true. If you print a sample of a spot and add your digits then you can get the values of the needed design.
Finally, if you had a recent assist fan error, when was the last time you cleaned the machine?