Putting a second landscape above a primary landscape causes all sorts of interesting issues.
I could randomly teleport my vehicles up into my secondary landscape, as well as push them - while inside them - through barrier devices. This would end up causing so much server lag the server would crash. I probably have video, but I’ve worked around it by moving pieces of my island around for now.
Do you have a Fort_UnderGround Volume around the lowest Z landscape?
I didn’t think / know I needed one. It’s a primary terrain with a spawning area above it. I’ll try that. Where’s the documentation on what a fort_underground_volume is?
@Nooberling Thank you for your report! We would like to look into this further, would you be able to submit a bug report using the form available here? Fortnite Creative
Did not work in this case. I marked a huge portion of the lower landscape with an underground volume and still had the same glitch.