Probably best to raise a ticket and provide as much info as possible. Does this happen if you render in another format?
What do you mean by 'afterimage' and at what point does this occur?
You'll need to provide a copy of your scribe and your rendered scribe. If the rendered version is too large to attach to the ticket, send the support team a GoogleDrive link.
sorry,"afterimage" means noise.
I attached the image and link below.