Hum… Unfortunately I cannot reproduce the crash at the moment. I’m on Windows 10, so maybe that could explain the different behaviour (although I think it shouldn’t).
If you find any other relevant info, please let us know !
Getting back to your original problem, you can set the speaker coordinates all at once, without using the patch I sent (and which crashes on your computer).
Either save your Panoramix session and edit the txt file in a text editor, and set the “/bus/1/speakers/aed” lines as you wish. Or copy the "/speakers/aed [list of aed coordinates]” message from my patch, and paste it into the speaker UI of the bus of interest in Panoramix.
Best,
T.