Hi I have made this map in blender

And when I export it as GLB and put it into PowerPoint it looks like this for some odd reason:

The other 2 texts are gone only leaving Polarian text which is wrong colour and the very very faint Commorian text on the left side. The texts are using shrinkwrap modifier to be flat on the map. I'm using the shrinkwrap modifier for the text by the way.
Why is this, can someone please help me?
Here is a dropbox link to the Blender file if needed - https://www.dropbox.com/s/x0h8isic7rqy2ot/untitled.blend?dl=0