Published project however smartshapes and highlights have moved

Hi, I have created a project and all looks fine in the previews.

However, when I publish it, all of the smartshapes and highlights have moved by a few milimetres so they are all showing off-centre. For example, in the image attached, the red smartbox has moved so it is no longer centred over what is meant to be showing. In some of the examples, this looks very odd and jarring. Any ideas?