When experimenting, sometimes things go crazy - a restart button would be helpful 
<current workaround enable/disable non-used plugin>
Does ctrl-Z not work for you?
a lot of audio software has a panic or kill button for when things go crazy, to save your hardware and/or ears from being damaged.
something like that would be great actually, instead of waiting for it to crash.
If we had a panic button that would be the most used button for me