If you look on page 116 of that datasheet you will see the footprints for each part. It shows that they use the 6 pin stereo footprint even when using a mono 4 pin part. Unfortunately the part you had had slightly different pin spacings. I have edited that part and created a new version called ACJM-MH for you and I think I got the spacing correct. To be sure I would create a new sketch, import the part, place it on the PCB and then print the PDF/SVG via the Export for production button at the bottom. Then you can place the part you have on the print out and make sure it is the correct spacing. The difference between some of the variants is on 0.1mm.
Also after modifying that part I would say the orginal part you used would not work with any real jack as the spacing of the pins was a combination of the one you wanted and the one it was labelled as.
AMPHENOL - ACJS-MH.fzpz (8.4 KB)