Repaint issue

I am having an issue with the pmdg_737ngx_fuselage_3 texture.  After "painting" it, I save as bmp to desktop, then I open it in DXTbmp, flip it and save it as .dds DXT5 (4096x4096).  I then place the completed .dds file into the aircraft texture file and this is what I get (see high lighted areas).