It's likely you're hitting the issue where the dimensions of the old image are used when you swap to a new image. This is a known issue for the latest version of Edge Animate CC and we're looking at fixing it in an upcoming release. Unfortunately, the only thing you can do is to change the dimensions of the image after you swap it. You can also copy and paste the motion path from one element to another, if that would help.
Hope that helps,
Thankyou, yes that's exactly what i ended up doing, resizing once i'd replaced. Nevermind, the good thing is it's being looked at for future release. Bring it on, i love Edge!
This is still happening with the 2015 CC Release. Should it have been fixed by now?