With high enough latency, quickly unloading an reloading a streaming level with a replicated actor on the server can cause the actor channel on the client to fail to find this actor: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor.
See linked EPS question for repro project and steps.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-278590 in the post.
| 18 |
| Component | UE - Framework - Networking |
|---|---|
| Affects Versions | 5.6 |
| Created | May 8, 2025 |
|---|---|
| Resolved | Oct 12, 2026 |
| Updated | Oct 20, 2026 |