Version: Akka.NET v1.3.11
Issue:

When akka.actor.serialize-messages = on, built-in Akka.Cluster and (possibly) Akka.Remote get serialized with JSON.NET (the default object serializer) instead of their specific serializer registrations, and thus this exception gets thrown:

Cause: Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type Akka.Cluster.InternalClusterAction+PublishChanges. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'NewGossip', line 1, position 97.

Reproduction from @Dan-Albrecht: https://github.com/Dan-Albrecht/AkkaRepro

Suspect that the issue is that the underlying serialize-messages code isn't correctly looking up the customer serializer correctly.