Can confirm this is still an issue in the 1.14 release - The server.properties defaults to Peaceful either on server startup (if the server was offline when the server.properties was edited) or automatically shortly after saving the file if the server is online at the time.
Tested in multiple environments on old and new servers on 1.14 and they all seem to do this for me.
The '/difficulty' command correctly shows the set difficulty however.
Richard Instone
Can confirm this is still an issue in the 1.14 release - The server.properties defaults to Peaceful either on server startup (if the server was offline when the server.properties was edited) or automatically shortly after saving the file if the server is online at the time.
Tested in multiple environments on old and new servers on 1.14 and they all seem to do this for me.
The '/difficulty' command correctly shows the set difficulty however.