Sleep state not replicating properly

Networking - Jul 30, 2019

Objects' sleep states are not being properly replicated to the client. While it cant seem to be reliably triggered, occasionally the client will receive a constant stream of sleep events, until the ...

Physics replicates incorrectly on the Client-Side on sloped surfaces

Networking - Jul 30, 2019

Replicated objects don't behave correctly on the client-side on slopes when not sleeping. By placing two cubes on one another and slightly rotating the bottom one to create a very gentle slope, the ...

The socketbuilders do not properly join multicast groups on iOS

Networking - Jul 26, 2019

On iOS, using the code in the UDP socketbuilders causes the sessions tool to not join with iOS devices. Giving the error EADDRNOTAVAIL. If the user falls back to the other code function that uses th ...

Material Parameter Collection Values not Updating in Simulate if "Run Dedicated Server" is Checked

Networking - Jul 15, 2019

Material Parameter Collection Values not Updating if "Run Deadicated Server" is Checked Working as expected in 4.21 CL# 4753647 Found in 4.22 CL# 7053642, 4.23 Preview 1 CL# 7236301, and 4.24 CL# ...

Crash after network disconnection/pulling network cable

Networking - Jul 11, 2019

A very unfortunate bug shipped in 4.22 that causes a crash in many cases when a client is disconnected from the network, such as when unplugging the network cable. This will be a cert failure on con ...

Component deletion on net dormant actors doesn't replicate properly

Networking - Jul 11, 2019

Deleting a dynamic component on an actor that's currently net dormant doesn't replicate the deletion to clients, even if FlushNetDormancy is called. This is inconsistent with adding components, whic ...

Investigate removing reliable sequence synchronization from UActorChannel::SetChannelActor

Networking - Jul 8, 2019

UActorChannel::SetChannelActor contains old code to synchronize the channel sequence numbers for a connection if the channel index is reused. This seems unnecessary now that we intentionally update ...

Instanced RepNotify variable doesn't update on client if altered in level

Networking - Jul 8, 2019

An instance editable Rep Notify variable will not update on Rep Notify if an instance of if is edited in a scene. A demonstration project can be found here: [Link Removed] Found in 4.22 CL#7053642 ...

Set Skeletal Mesh does not replicate or multicast to Clients

Networking - Jul 5, 2019

The Set Skeletal Mesh function does not replicate or multicast to other Clients. In Setup A (Level Blueprint) only the Sever Character is changed on either the Client or Server. In Setup B (ThirdPer ...

Fix forwarding of dedicated flag and number of players when running a functional test

Networking - Jun 21, 2019

As described in the UDN question, some settings aren't forwarded correctly to the game instance in PIE during a functional test. Proposed patch attached. ...