tile scale in the demo you downloaded is controlled by these:
vertexShaderConstant[64]=<vecSkill41>; //(u_scale1, v_scale1, u_scale2, v_scale2)
vertexShaderConstant[65]=(20.0f,15.0f,0.0f,0.0f); // !NEW! -> (u_scale3, v_scale3, 0, 0)
The <vecSkill41> part is set in your Action.
Since I cannot see your screenshot, I am just gonna shoot some ideas:
-Add mipmaps to all your entSkins or if you use mtlSkins add mipmaps in the starter function.
-Change this in the WDL file:
magFilter[3]=point;
minFilter[3]=point;
mipFilter[3]=point;
to >>>>>>>>>>>>>>>>>
magFilter[3]=linear;
minFilter[3]=linear;
mipFilter[3]=linear;
Good luck!