Measurement Quality - Low

[[Sa...]]

Hi,

I created a scanning template and been using for sometimes and the measurement quality is always 'High". Sometimes there are waypoint that turn into "low" quality, and what I did was rescanning that particular waypoint again and it change to "high" maybe due to some sensor movement etc. 

Is it a problem when the measurement quality turns to "low"? I still can polyganize it. But will the "low" measurement quality affects my final scan significantly? How to improve this measurement quality and transformation quality?

Thank you!