Sketchup pro for Mac not finding start or end points or planes after extended use

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SketchUp 2026 has the fix I mentioned. That’s now available from the downloads page:

Download All | SketchUp | SketchUp

Here is a post about the update:

SketchUp 2026 is here!

SketchUp 2026 is here! We’re excited to announce that SketchUp 2026 is now available! Download the update now, or, if you already have SketchUp open, simply go to Help > Check for Update. We’re very proud of this release because we think it has something for everyone: improving SketchUp and LayOut performance, stability, utility, interoperability, visual style, and efficiency. All of the important details are in the 2026.0 Release Notes and on the SketchUp.com What’s New page. On the SketchUp…