The screenshot was made on this map: Wales Coast Rally.zip?
Yes, at the very top.
Not really sure I'd call this a bug per say. It's always been that way for as long as I've played. You can change your terrn size in the otc file I believe it is and make it rather large if need be.
I just posted it here as bug/request/something I noticed and as it seems it was rather unknown before.
This issue seems to be still valid (at least for me):


which terrain to test for this?
The first screenshot is on Wales Coast Rally.zip
I moved the track mesh to confirm that the entire mesh does have collision:

For the second screenshot I just placed a truckshop outside of Simple Test Terrain's boundries:
731.470, 7.961, -35.579, 0.0, 72.3, 0.0, truckshop
Thanks for testing guys
Why was this closed? Its still valid.
@CuriousMike56 I moved the track mesh to confirm that the entire mesh does have collision:
I thought that means "the mesh has collision both inside and outside of map". Nevermind.