Hi,
the recent MUX modular still crashes / force-quits Renoise, as soon as the last instance will be removed. This only happens on OSX 10.9, but not on OSX 10.12.1…
Is this maybe a bug in Renoise?
Recent mux: http://www.mutools.com/galaxa/mux-7-2-21-mac64-vst-dll.zip (the whole dir needs to be placed into VST dir)