I have a problem with the Section Plane tool that I’ve only just noticed is happening so I have no recollection when it might have started. But I’m certain it’s only been recently.
I have disabled my plugins and uninstalled plugins that seemed to be turning themselves back on after restarting SketchUp.
And I have done a repair installation as administrator.
When I create a section plane I cannot click on it to select or move it, I cannot activate another tool, I cannot click on a toolbar or the menu bar.
The only thing that solves the issue is clicking the Esc key.