Replicated Actor Causing Warning Spam. How to debug?

Hiya,
I’ve been trying to clean up a bunch of errors/warnings in our output, and I’ve recently run into one that I’m not even sure how to start debugging. I’m assuming that it’s running into some problem with a discrepancy during replication causing an actor to not be replicated, but I have no idea where to even start.

The error looks like this (actor/map names have been changed):

 LogNet:Warning: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor. Actor: MyActor /Game/Maps/MyMap:PersistentLevel.MyActor_273, Channel: 252

Any ideas on what might cause this and how I can debug it? It’s just a simple blueprint actor, so I can’t see why it would have the issues it’s having since it doesn’t inherit from anything we’ve implemented ourselves. Could it just be some odd setting we’re missing?