Multiple hotbar only working for host

[adamjones353]

1. PC Steam.
2. Multiplayer (2 player both of PC steam)
3. We have a strange issue where only the game host can use the Hotbar, mutation and save respawn point. When a player who is not the host tries to add an item to their hotbar it does nothing at all, they are also unable to assign or unassign hotbar slots. We also noticed that they can't activate mutations and also spawn points do not get set. During our debugging, we found out that if the save file is moved to a shared save and the other player hosts then they were able to use Hotbar as normal which is how we know that this is only effecting 
4. We are in the sandbox and the non-host player died of dehydration. They respawned at the bed but noticed their hotbar was empty.