It is a wobble, just like spiders do.

While very prevalent in spiders, it pops up in other morphs and normals as well. Occasionally it's genetic like with spiders, more often it's caused by extreme overheating or trauma.

As long as the snake can eat, shed and function normally, it isn't anything to worry about. Since the animal in question is a caramel, I would lean towards it not being genetic, so I wouldn't cancel any future breeding plans just yet.

Can you talk to the original breeder of this animal ? If you can, find out if any of it's clutchmates also do this. If not, it was probably an accident of husbandry. If they do, I would start suspecting it is genetic, and if it is I personally would not breed it, but that's your decision and not mine.

Gale