Well, it did work out of the box last I checked, but I have made some minor changes since then. I might potentially have broken something by accident, though it should then hopefully be something minor that is easy to fix, since I have not made any real major changes since last I did a true networked multiplayer test. Just to be sure, this is something that happens when you play multiplayer through built projects, but does not happen when you play-in-editor with Number of Players > 1? Because Player in Editor at least seems to work perfectly on my end. I will try to find the time to test multiplayer properly soon.
I’m a bit confused on what is going on here. On tick you are targeting an array of all actors and asking them to follow themselves? Follow Actor is also not something that should be called every tick. It is an event that tells the grid camera what actor to follow, which is then handled by the FollowActorTick function, which is connected to BP_GridCamera’s EventTick. It should be enough to call FollowActor once and the grid camera should then follow your character. Make sure that the actor in the actor input is the actor you want to follow and the target is the camera you want to do the following, not an array of all cameras.