It is not unlikely that you have the dish pointed off by 9 degrees so you are looking at 101/110/119 instead of 110/119/129. Cover the center LNB with foil for now and if 119 remains but 110 is gone, then this is the problem.
To tune from scratch, you need to cover the outer LNBs and find 119: set the skew, adjust the elevation (with a plumb mast), and rotate the azimuth. Then fine tune the elevation. After removing the foils if 110 and 129 are noticeably different then a tweak of the skew is in order. If 119 is hotter than 110 and 129 then tweak the elevation. Repeat.
-Ken