If it is EMI as @WillAdams said, this is what I did to solve the issue.
Grounding your Shapeoko - CNC Machines / Shapeoko - Carbide 3D Community Site
If it is EMI as @WillAdams said, this is what I did to solve the issue.
Grounding your Shapeoko - CNC Machines / Shapeoko - Carbide 3D Community Site