Skim forward search not working on macOS 12.1

[Zeta611]

Description

I recently got an M1 Mac (if relevant) and setup Neovim + vimtex almost identically to my previous intel Mac.
However, forward search does not work anymore.

I installed both Neovim and Skim via Homebrew.

Steps to reproduce

I invoked neovim with NVIM_LISTEN_ADDRESS=/tmp/nvimsocket nvim -u minimal.vim minimal.tex.

set nocompatible

let &runtimepath  = '~/.local/share/nvim/plugged/vimtex,' . &runtimepath
let &runtimepath .= ',~/.local/share/nvim/plugged/vimtex/after'

filetype plugin indent on
syntax on

let g:vimtex_view_method = 'skim'

\documentclass{article}

\begin{document}
Hello, \TeX!
\end{document}

Expected behavior

Forward search should work with \ll or :VimtexView.

Actual behavior

Skim does not get focused nor 'forward-search'ed.

Initial \ll does wake Skim and open the document (without current line being focused).

Backward search does work properly.

Do you use a latexmkrc file?

No

VimtexInfo

System info:
  OS: macOS 12.1 (21C52)
  Vim version: NVIM v0.6.0
  Has clientserver: true
  Servername: /tmp/nvimsocket

VimTeX project: test
  base: test.tex
  root: /Users/jay/Developer/TeXProjects/test
  tex: /Users/jay/Developer/TeXProjects/test/test.tex
  main parser: current file verified
  document class: article
  compiler: latexmk
    engine: -pdf
    options:
      -verbose
      -file-line-error
      -synctex=1
      -interaction=nonstopmode
    callback: 1
    continuous: 1
    executable: latexmk
  viewer: Skim
  qf method: LaTeX logfile

[clason]

That was quick :) Yes, macOS 12.1 broke Skim's forward search functionality, see https://sourceforge.net/p/skim-app/bugs/1438/

There's unfortunately nothing that can be done about it right now; we'll have to wait for the Skim dev to release a new version to work around these changes (if that is possible).

[Zeta611]

So is it broken regardless of the CPU architecture in macOS 12.1?

[lervag]

Yes. CPU architecture does not have any thing to do with this, I think - it is a software regression. And as @clason implies, there is nothing I can do currently from the VimTeX side except wait for updates on Skim. I believe @clason plans to submit a PR when Skim is updated, so stay tuned. :)

[clason]

@lervag maybe leave it open or pin it? I expect this will get asked a lot in the coming days...

[pbrosnan]

I can't even get Skim to open now on macOS 12.1. Thinking of switching to zathura while this is getting fixed. BTW, Thanks for writing vimtex levrag!

[lervag]

Thanks, @pbrosnan (and sorry about the state of Skim... of course, you could just move over to the light side and use Linux 😃 )

[clason]

Short update: On the linked Skim issue, there is now a prerelease that restores functionality on macOS 12.1 (go to the end of page 3), so the next release will Just Work again (without any changes in VimTeX).

[lervag]

That's great news! :)

[clason]

Unfortunately, the 1.6.7 that was just released is apparently not the same as the last test version -- forward search is again not working 😞