This is more of a notification, but if you see this and are concerned, continue reading. 

Below the DROs, there is a small button that typically says ‘Normal Condition’ and is green. “Normal” is relative and is set by going to Operator>Set Normal Condition. That takes a metaphorical snapshot of the current settings. If you change a default setting, the button with turn yellow and say ‘AbNormal Condition.’ If you highlight the button, it will tell you what the “abnormality” is. In most cases, it is a default setting like Distance Mode or IJ Mode. You can change that setting back or set a new normal condition.

                Note: Having an abnormal condition does not prevent movement or stop you from running G-Code or anything else. It’s just a notification to alert you that you have made changes that deviate from the previously established norm.