Hey,

I've un-subscribed to all mods and one by one re-subscribed. I've pin pointed the problem to this mod.

What's happening:
There's a vanilla Oak Tree (or Tree With Leaves) hovering in the very center of the map (+- 10 units) at a height of roughly 66m.
The tree does not count towards the tree limit, can't be removed by bulldozing, tree brush (this one or vanilla) or Move It.
It's not terrain conforming, meaning it could be hidden inside a mountain.

I first noticed it in the Map Editor. Happens everytime I create a new/empty map or load an existing one. It also happens when loading a game with said maps.
Haven't tried loading old city files yet.

Otherwise, great mod! :-)