Improper dimension data is sent 

Temporary dimension data is sent here: https://github.com/PrysmNetwork/Orion/blob/41de1d97d28ca93df985f64f30380e49494214cb/server/src/main/java/pro/prysm/orion/server/protocol/handler/PlayHandler.java#L25-L42

At some point, proper dimension data should be extracted from the game in NBT format and read by Orion.