Map Maker not exporting maps?

[echelon666]

Every time I try to export a map to test it fully on the game (or have a friend test it for bugs), Map Maker says "Failed to export (mapnamehere)". I've tried this with a map that has all in-game meshes and one with downloaded ones. This is really annoying because I am a big map maker for in-game groups I make. If I can't export to even have someone TEST the map, then what can I do with it?

Any and all help will be appreciated! thanks

EDIT: So apparently they show up for me in-game, but won't export

[Ramine]

Save it, close FH and open it again. Do this every time it fails to export in future, it should fix it.

[echelon666]

I keep doing that and it still won't export :/