There is a duplicated block of physics replication code in PhysScene_PhysX.cpp
https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Runtime/Engine/Private/PhysicsEngine/PhysScene_PhysX.cpp#L1148-L1161
n/a
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-66893 in the post.