MacOS Unreal 5.6 : RepNotify toggles between working and not working if you add/remove

Development Programming & Scripting
1

I am using Unreal engine 5.6 on MacOS and was learning about Replication on Udemy. I added OnRep_Something function to RepNotify change on an Actor’s variable. It was working. But then I added,

UFUNCTION()
void Dummy(){}

and all OnRep_ functions stopped working. Then I removed the Dummy() function, and all started working again.

To Repro :

  • Setup a OnRep function for your actor, compile and run the game to make sure its working
  • Add a dummy UFUNCTION anywhere on any actor
  • Observe it will have opposite effect (if it was working, things will break. If it wasn’t working, it will work now)

Thanks in advance.