I was testing the build with a few friends earlier and we tried going in a world that contains a few different elements that were supposedly fixed (seats, climbing for example) but whenever we try to join the world in Open Beta (884), the game crashes.

Here's the world ID, do note the world has not been reuploaded for 2018 (I'm about to check if building for 2018 fixes that issue) :


Here is the end of the log upon joining that world:


Precised "a certain" world in the title post, but clearly this could happen with a lot of other worlds and we just don't know about it yet.