Tools>>Map = D:

[bLaCkHaWk]

So, just recently my map maker tool on FeralHeart has stopped working! Whenever I click it, my game crashes. I may also point out that at the same time this started happening, the little animation on the log in screen is just blackness.

[SoulRevenge]

It might be because of a recent terrain or mask you've created, try deleting those. If that doesn't work, then re-intall you game.

[StarWarsWolf7]

The log screen is just blackness....Seems like that points to watermill being deleted. Did you perhaps accidently delete the terrains folder or something? Perhaps try checking that, or also try checking if you have a faulty terrain mask/height map (Such as one that's not 513 by 513, a png file, etc). I hope this helps, because you probably don't want to re-download the game. However, that may be the last resort if things just cannot be fixed. Best of luck to you!