Frame and Focus capturing movement between Takes

When I am using Frame and Focus I am finding (some times) that the system seems to be capturing changes to the last image even when it is no taking an image. I use the Take One format. Sometimes, not all the time, it will show the next Take One as a combo image with the previous one, showing star positions like a time exposure which drag the star from one position to the next, with a trail of light. I can fix it by shutting down SGP and restarting it, usually. What is causing this and how can I stop it from happening? I am using 2.5.1.15.
Camera is the ASI1600MM-C, and everything else seems to work fine.