Trying to place a specific type of vegetation, but getting random ones

[Saphle]

Hi there! I'm working on familiarising myself with the mapping tools for the game, but I've run into a bit of a problem. I've been trying to place specific types of tree on my map, and in both WorldEd and TileZed they all look like the trees I specify, but when I load the map into the game they get replaced with a seemingly random assortment of trees. To illustrate, I plopped down a bunch of the same kind of tree on an otherwise empty map. In TileZed, it looks like this:

 

But when loaded up into the game, it suddenly looks like this instead (note that the grass overlay is also different):

 

I've checked the lotheader file and the only tree listed there is "vegetation_trees_01_8" which as far as I can tell should be the tree that is shown in TileZed. So why do I get all kinds of different trees in the actual game? Is there no way to specify exactly what kind of vegetation I want?

[Ciber Ninja]

It all has to do with the switch to multi-tile trees.

They did not want to have to manually rebuild the map, so there is a layer of code inaccessible to modders which handles the actual tree placement.