blackbox control randomly pausing / stopping movement

Hi all, I have a problem where the control software stops processing the g code randomly during a running job. The system remains in the position prior to stopping with the spindle still running. It is possible to restart the movement by selecting the pause job button and then resume job. the code then continues and completes the job. I have checked the cable connections and the made sure the vfd cable is not running near any others.
i have tried disabling the 3d view but the issue is still present.
I'm running the blackbox control on the latest software on a workbee 1010

I have attached a screen print of the g code on the serial console.
Any suggestions where to look next?
thanks

 

possibly same issue as
Job stalling when spindle starts

will look closer at the vfd and spindle

 

I have removed the screening of the spindle cable from the vfd earth connection side and left the connection on the spindle . 10+ job runs successfully completed.