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Captain's log of the reason behind why this is required: When spawning a replicated Level Sequence Actor on the server, a SequencePlayer subobject is also created and replicated along with it. If the sequence player is interacted with directly (by way of calling things like PlayLooping, which adjust the loop count of the player's playback settings directly), there can be a justifiable discrepancy in playback settings on the server between the actor and its player. This is not a problem in practice because the Actor's playback settings are only used for initialization. When these 2 objects are replicated to the client, the client receives the properties for both the actor and sequence player in the same network bunch, applies them, then calls PostNetReceive on both objects. Unfortunately it can call ALevelSequenceActor::PostNetReceive before UMovieSceneSequencePlayer::PostNetReceive, which means the Actor ends up calling Initialize on the player (because it hasn't been set up yet - it's only just been spawned by the net code), which ends up trampling over the player's PlaybackSettings that were just applied by the net replication. Since the shadow state on the server thinks it has already sent those properties to the client, it never sends them again, so the client doesn't think it's looping when the server does. #rb Ludovic.Chabant, Max.Chen #preflight 63345955031c90cb0bab2afb [CL 22240516 by max chen in ue5-main branch]