Hi Timothy, Thanks for your work on this.
I've run into an issue related to the change you made in 209e5f5f4047a34db27c3b5dff4077bb1da9ceed that makes org-latex-compile asynchronous. This breaks the org-babel-latex-pdf-svg-process functionality I introduced in commit ae35a345903c640397a8d29812112d72a9f8494a. To reproduce the issue, you can create an org file with the following single latex source block: #+header: :file "out.svg" #+begin_src latex :hidden \begin{equation}\tag{1.6.3.1} \mathbf{F} = q \mathbf{E}, \end{equation} #+end_src If you execute this with C-c C-c, it complains about the PDF file not being present. The problem can be found starting in line 182 of ob-latex.el of your current (as of this writing) feature branch commit 8384289762b41b26e75d2e80c37ec84bcc552d32. The issue is that org-babel-latex-tex-to-pdf (which delegates to org-latex-compile) creates the PDF after org-compile-file (in line 185) tries to generate an SVG file from it. In fact, I was initially confused because I couldn't reproduce the issue with edebug (obviously, because that gave a long enough delay for the file to be created before attempting the svg creation). org-latex-compile seems like it could be a dangerous function to change to be asynchronous, as it's used in a lot of places and its very possible that other people (like myself) were relying on it being synchronous when they made some change that used it. I haven't looked at its other invocations, but I wouldn't be surprised if this breaks other things too. I hesitate to suggest alternatives because I don't know enough about your use case. But, maybe you could achieve what you want through a new org-latex-compile-async function, or add a nondefault option to org-latex-compile? Matt