I’m pretty sure if its in the red mode, it is not capturing. It probably also has the message down at the bottom saying “tracking lost”? It only captures when you see it green. What generally happens is you lose tracking and then get it back. But if your object has features that are similar, it can think it is at a different point in the object when it starts tracking again. This is why you get the double/ghosting look.
Three things you can do.
pause the scan and delete frames until you get rid of your doubling and resume scanning. This works well if you catch it quickly and you do not lose to much of what you scanned. This is probably the easiest method.
keep scanning and delete frames in post processing
use marker mode or feature rich objects around your part to maintain tracking.