Have problem with smothieboard 1.1 with suspend resume fonction I use for CNC machines

Have problem with smothieboard 1.1 with suspend resume fonction
I use for CNC machines
When do suspend with different way (console, physical swith button) it’s ok the machine pause but when i do resume the mill tools in z axis go down go down inside the material, don’t stop need kill the process with emergency button.

Have same problem with 4x 1.1 smoothieboard and 0x
Now in config don’t have choice with simple button
http://smoothieware.org/kill-pause-button

Just kill is documented, for pause need create a module with other pin

Someone have same problem or have explain about this ?