Kindly refresh some information so we can try to help you:
What are the cage temperatures (lowest & highest) & humidity readings? What do you use to clean her cage with? (Any residue left she might be contacting?)
How long have you had this snake? This could be caused by nutritional deficiencies, IMO- & that could be from poorly-fed prey animals, or internal issues that cause poor nutrient absorption (including parasites, or just organs that don't function as well as they should)
What is the substrate being used? Misting the cage, without using a substrate that HOLDs moisture, is NOT the best way to hydrate- it tends to be very short-term humidification at best.
While I don't think this needs a "rush to the vet", it might help to get a stool check one of these days. (must be fresh- check for parasites)
Have you ever used any topical antiseptic ointment on this snake? Topical use of Neosporin or similar ointments not designed for snakes has been known to cause scales to "de-laminate" this way.