This bug might be hard to replicate, I’ve seen it happen many times with fast moving Skeletal Meshes used inside the Sequencer, this bug happens both in Live Edit and UEFN.
The way to replicate this is by Importing an animated Skeletal Mesh, then Tracking it inside a Sequencer and then assigning an animation, when this sequence is playing the Skeletal Mesh will appear and disappear throughout the animation. This may happen when the player is looking at it or looking away from it and I’m not sure if it’s client sided or server sided.
