MK 2 stops during a job with gSender ver 1.41

I’ve noticed that my MK2 just stops during a long project. For example during a bowl cutting that takes about 2 hours about a third of the way through the MK just stops. There is no fault indication on gSender. I have successfully continued by pressing the pause button on gSender waiting a couple of seconds and then pressing the Run button. My MK 2 continues running without any mistakes. This will happen a couple of times during a long cut and each time by pausing and running again it starts from the last position without issue.
Something I can do to prevent this?