Pd Version: 0.43.4-extended
Tcl Version: 8.5.11
Mac OS X 10.9.1 (13B42) / Intel
built-in sound / jack
On a MacBook Pro Retina, 15-inch, Early 2013 after installing and using Jack successfully Pd-extended crashes if you try to switch back from Jack to portaudio.
Seems like Pd-extended is spawning a jackdmp Process on Startup too.
Attached you will find the crash-log.