moving layer creating duplicate error

Hello,

I've updated to 2020, I'm having trouble when I am moving layers.

Each time I move my layer/object, another duplicate is left in the space it has moved from. This isnt actually a layer just a frozen image. It's just stuck there.

I'm having difficulty explaining, and therefore searching for anything to resolve this problem. So the screengrabs below hopefully outline the issue. The leftover image after the move wont disappear.

Thanks