dsalmon

That's probably because of the limitations of WC3's Map Editor itself.

I imagine there just gets to be so many things on the map that it no longer allows creation of doodads or whatnot.

Unfortunately I've encountered this so rarely that I don't have much of a way to test for it and fix it.

Sorry, that's a bug that I've just confirmed.

Luckily you can do the same thing with "cgear 2 mage" and it works.