I never hit the stop unless there is no motion at the time, so I can not say what would happen. If it is an emergency I hit my E-Stop, that is why I have an E-Stop.
I have no issues if I press Feedhold.
If I press feedhold then, after the axis motion has stopped, I press Stop to clear the buffer, I again have no issues at all.
Maybe there is a problem with the plugin you are using and it might be worth trying the first plugin like I suggested. Maybe there is an issue with your setup, seem to recall you have had issues from day 1 but cant remember if it was always with the ESS or with some other controller.
Hood