artifacts can appear when painting on a model if the UVs overlap, are positioned too close to each other, or are positioned too close to the UV tile border.
View the UVs for the model by clicking the UV View. Dolly and track in the UV View to determine if any of the above-described situations exist. If so, you must re-edit the UVs in another 3D modeling application equipped with UV editing tools (Maya, 3ds Max, and so on) to correct the problem and then import the model or import only the UVs using File. Prestige Kings County
