Importing issues

Hey, I recently imported a quick placeholder model for a project I'm working on, it's basically a semi-transparent square which overlays the borders of countries over a terrain. The model itself is made up of smaller planes, each representing a country. My problem is that some of the countries, when imported from either .fbx or .blend file, are flipped so that they face downwards. When i flipped them the right way round they go back to normal when i go into playmode. (It's definitely going into playmode as i've checked.

thanks