Did you paint the clear all in one? These decals are somewhat sensitive to 2 component paints, so you need to lightly mist them, wait until they start to dry to the touch, then lightly mist again, getting more and more paint on there. Once entirely covered in the mist, you can spray on the final coat evenly...

Did you use the setter and softener? If not, this probably contributed to this problem also...

Regards