Copy and paste, object selection problem

Need help, if it needs i TRY to record the problem,

Well, imagine i made a frame with a cool drawing, now i want to copy and paste the drawing that i did on that frame, now i create ANOTHER keyframe, i paste the drawing from the last frame, now i go to object selection and move the drawing for another position, but when i do that, every frame goes with the selection (when i move the copy and pasted drawing), idk if it is confusing to understand, if it needs i try to record a video of the problem, btw the weird part too is that the onion skin stays how it was before (when the bug happens)