After downloading 1.16.210.06 Server and setting up. I tried to run this version and I received the same error. I did the suggestion from Sam Jost and it worked, and I was able to start the server.
I too have the same issue. I slept in the bed to set the spawn point from when I die, but when I do die I end up on the roof as well. Its like it never took the altitude location.
After downloading 1.16.210.06 Server and setting up. I tried to run this version and I received the same error. I did the suggestion from Sam Jost and it worked, and I was able to start the server.