Synctex do not go to the correct location on VSCode

[czhang03]

Hi I am using vscode and Latex-Workshop, and noticed that synctex do not go to the correct place on large files.

I find out that the synctex from PDF consistently points towards a later part in the file, and synctex from file, consistently points towards an earlier part of the PDF.

This effect became worse at later part of the file, for a 20-page-ish document, the difference on the later part of the file can be as large as 1 single page difference, but for the difference at 4 pages, it would be around 1 to 2 lines.

Here is the acmart setting I use:

\documentclass[acmsmall]{acmart}\settopmatter{}

And I have not imported any other geometry packages or changed any spacing property.

Here is my latexmk build setting in vscode:

       {
            "name": "latexmk",
            "command": "latexmk",
            "args": [
                "-synctex=1",
                "-interaction=nonstopmode",
                "-file-line-error",
                "-pdf",
                "-outdir=%OUTDIR%",
                "-aux-directory=%OUTDIR%/aux_files",
                "%DOC%"
            ],
            "env": {}
        },