With the One Plus 5 I don't get any stacktraces in logcat. Same mac same project with the nexus 6 I get them. This is happening on multiple projects so I guess this is a device issue but there seems nothing wrong with it.
As it has been answered on a similar question this is due to the fact that you are viewing the LogCat for the selected process. So naturally when the process dies you get no logs.
You can instead create a filter based on your package name and you can keep getting logs after your application crashes.