If you get dogr cubes you either have a mod conflict or you forgot to install blackcore and magtape along with painter. I would guess mod conflict. Try to remove other traders and content mods and only try with painter.
thanks for reply
i dont any other trader mods. even try your mods only to see what happened but no luck there. right now only have these mods.
edited: redownloading the green and sand core again. try it only your mods buy still have the problem. ONLY 4 ITEMS SHOW DOG FACE that are in GREEN and TAN.