Does a variable replicates if its changed on client?

Hey Commander Shepard,

Replication will only be triggered if set by the Authority (server).

Here is more information on UE4 networking:

https://docs.unrealengine.com/latest/INT/Gameplay/Networking/

https://docs.unrealengine.com/latest/INT/Gameplay/Networking/Blueprints/

https://wiki.unrealengine.com/Networking/Replication