> On Sep 22, 2016, at 5:20 AM, Dave <d...@looktowindward.com> wrote:
> So I’m wondering if it is something to do with the AppleScript handling?

AFAIK, AppleScripts can only be run on the main thread. But it’s been many OS 
releases since I worked with them.  Even if it’s legal to run them from a 
background thread now, they might be doing something like dispatching the 
actual execution to the main thread? (I’m just speculating.)

Anyway, if the main thread is unresponsive, then drop into the debugger and 
look at its stack to see what it’s blocked in. Experiment.



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