I had the .tif file and by using "Layer to kml" toolbox (without changing the preset parameters) i got the kmz file with very bad resolution. Then i tried to modify it changing the values for output image properties. But the results is strange, instead of having the same cell size i got this weird shifted/overlapped pixels. Scale and all other parameters stayed the same, only the output image properties that were changed..
Have you ever met this problem?