InfoPath Dev

Sometimes when I'm working - most notably, after I've hit Ctrl+Z to undo a change - a section or set of cells in Infopath form design will turn 100% white. I don't know how to explain it...it's not really a 'background' nor a foreground, it's just all white like snow, everywhere, and cannot be undone. Have to close out and lose my changes. Surely this has happened to someone else? What in the world is the reason and/or solution to this?

It is a bug and it is horrible. I have this happen all the time in tables where the background color of cells is removed, often in cells where I have a dark background and white text so the text also looks like it has disappeared. I am super cautious about Ctrl + Z at this point. I've also had ridiculous struggles with layout tables randomly resizing all on their own if I remove a row and have had to save the form as source files and manually remove the row from the XSL. Pretty much a nightmare.