here's a problem that occurs on both my Mac machines (2019 MacBook Pro, 2019 iMac), on macOS Big Sur and Monterey, and in Xcode 12 and 13 alike. It also happens with C4D 2024 (though the error message might look different, if necessary I can add a screenshot of that, too).
It happens early on in the debug session, before the C4D GUI even shows up. And it also happens with the cinema4dsdk project, without any of my plugins being present.
Running Cinema 4D without attaching a debugger works as expected. Running a Release build without the debugger attached works as expected, however, running a Debug build without the debugger freezes after the GUI has appeared.
It never happens on Windows (not even in Boot Camp on the iMac), and it also doesn't happen with R25 and earlier versions.
What could it be?