Permanent makeup pigment turned GREEN after 2nd Picosure treatment. Should I continue to seek laser tx? Try Different laser?

I had Picosure laser done on semi permanent makeup. 1st treatment faded well, but 2nd treatment turned ink GREEN. 3rd treatment = still green. It is likely the titanium oxide in the ink. My question: Should I continue laser? If so, which type? Picosure? Yag? Am I completely out of options here? At this point, I do not expect full removal anymore. I only want the green out! I am in the medical field, so please feel free to explain things in medical jargon.