This was an issue a while ago and while it did get fixed, it is back! Only in matchmaking.
Actors will randomly reset their location to 0,0,0 and their past location will be buggy for the player, teleporting them to 0,0,0 temporarily.
Hey Flak! Sorry for the late reply, actually, the ones having these issues are Static Meshes.
It might also help knowing that these are attached to other Static Meshes that are being referenced inside Sequencer to be moved.
I currently am unable to provide video evidence as we haven’t seen it happen with the latest update. If it happens again, I’ll definitely update this post with more information!