I found this topic that describes the same issue I’m having:
I saw the thread was closed mid June, but I just ran into the issue around mid July. I hadn’t been cutting much from May until early July. When copying and pasting objects in the app, sometimes instead of pasting the object I copied, the app just moves a previously modified object to the spot where it would have pasted the copied object. It happened a few times while setting up my cut, but I eventually got everything where I wanted it. When I ran the cut file, however, some objects were re-positioned, and some were replaced with others.
This problem only happens with copy paste in the app. I’ll have time to get some pictures of the issue this weekend if needed.
Thump a lot at times, too.
Usually when I am setting up cutting out a number of one shape for cutting, and copy & paste a number of those, then start adding art work for etching (within that shape). Select & copy an image for etching, but it pastes another of the cut shapes, but really small. Delete that, but then find I lost one of the full size cut shapes–so oddly moved and resized it. GFism.