Help- Painted hair..headed cracking


I use a prisma color pencil to paint the dolls hair and after baking I went over it with a hint of genesis paint and thick medium and baked. The paint has "cracking"in a few areas. Anyone ever had this happen? Can I fix it? Is it the thick medium??? any help would be great!!!


I use thick medium thinned to yogurt consistency with thinning medium after prisma pencils and haven’t had any cracking of the paint. I would probably use a layer of thinning medium and bake for 9 - 10 minutes and see what happens??