Why Actor with physics is not synchronized through the network but StaticMeshActor is perfectly synchronized?

Development World Creation
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1

Hi, i have been doing some tests with physics and replication and i found some interesting behaviour with Actor and StaticMeshActor.

If i place an Actor with Physics simulation box, Replication box and Replication Movement box checked, the actor will result out of sync over network, BUT if i place an StaticMeshActor with THE SAME configuration as the Actor, it is synced over network… so… What is the difference between Actor and StaticMeshActor? I mean… a StaticMeshActor is a child of an Actor… so… What makes that the StaticMeshActor synchronize?

VIDEO:

RED CUBES → StaticMeshActor → Synced

GREEN CUBES-> Actor-> Out of sync

UPDATE 1:
If the root component is a StaticMeshComponent, works fine… why?

AMyActor::AMyActor()
{
	StaticMeshComponent = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("StaticMeshComponent"));
	
	RootComponent = StaticMeshComponent;
}

UPDATE 2:

I fund the bug: Unreal Engine Issues and Bug Tracker (UE-26120)

so… Could someone fix it?

2

Hello,

We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://epicsupport.force.com/unrealengine/s/

Thanks