I think I found a typo in MIST 3.2. :
Line 595 should be
return {x = Vec2.x, y = land.getHeight({x = Vec2.x, z = Vec2.z}) + adj, z = Vec2.z}
instead of
return {x = Vec2.x, y = land.getHeight({x = Vec2.x, z = Vec2.z} + adj), z = Vec2.z}
The "+ adj" should be out the "land.getHeight" function. Sorry if it has already been reported. And thank you SO much for MIST !!!