Could you give us a bit more insight on your project? This “ghosting footage,” is it appearing on the master clip for your footage? Is it only appearing in your sequence? Is there footage layered onto of the clip you’re looking at in your sequence? Are there effects applied to the footage? What version of Premiere did you update from? What update do you currently have?
All of that info might be helpful to anyone trying to help. Just saying you updated and saying your footage looks like X instead of Y isn’t very much help without some more context to the issue.