I assigned all of my land tiles based on a map I created.
I used the make map function to create an accurate bitmap of the landmasses that I then
used to create my elevation map using black as zero alt and white as max alt.
I then saved this as a grayscale 8 bit bitmap.
I imported the elevation bitmap, and none of my land elevations were changed, yes I saved,
closed, then reopened the editor.
I clicked on the water not zero button and found that 6427 vertices were not at zero. These were
located far to the bottom left of my landmasses, way off the map.
Okay, what did I do wrong?