Subtraction between pre-explosion WFPC2+F555W filter image, an the late time WFC3+F555W image, covering the site of SN 2016adj. The WFC3 image has been transformed to match the pixel scale of the WFPC2 data. A diffraction spike from the nearby bright star in the field is visible in the WFPC2 image, and is masked in the WFC3 image. No disappearing progenitor can be seen in the subtracted image, although signatures of light echo emission are clearly visible.