On MacOS, when opening files from within Finder, while an AGI instance is already running, each time a trace file is double-clicked/opened, instead of opening that file within the already running instance, a new AGI instance is launched. This often/always results in a stuck situation, where the AGI icon keeps bouncing in the Dock, but no progress is made. When getting into this stuck mode, attempting to double-click any other file, no longer launches a new AGI instance, which makes it impossible to open any more files. When it gets stuck, you can no longer launch AGI, even by double-clicking the App.