Got your email (thanks for sending it). However, the button highlights do not move out of position for me. Any further steps to reproduce it?
Maybe this will help you quickly solve your problem: since your button highlights are based on the text, use the text as subpicture instead of creating them as you are. You can do this from Button properties (it’s a checkbox in the Properties palette- you’ll have to delete the existing subpicture layers first or afterward). Hope this tip helps you.