I have been using LaTeXiT for a few years and have many presentations in PowerPoint with embedded equations. About a month ago, I lost the ability to convert equations embedded in a PowerPoint presentation back into LaTeX. I confirmed this happens with any new equations I put into any PowerPoint presentation (old or new). I am trying to copy from PowerPoint and paste into LaTeXiT. I fear that an update from Apple or Microsoft broke something.
PowerPoint for Mac, Version 16.9.1 (180125); LaTeXiT Version 2.8.1; macOS High Sierra, Version 10.13.3
I always paste LaTeX eqns into PowerPoint as PDF. I do not edit any of these equations with the PowerPoint picture tools.