Unreal Engine Issues

Investigate removing reliable sequence synchronization from UActorChannel::SetChannelActor

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 ...

Editor crash when setting r.UniformBufferPooling to 0.

Multiple keys with the same value appear to be removed on Android for a Curve Table

When using a curve table on android it appears that keys with duplicate values are removed. Link: [Link Removed] ...

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

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 ...

Mac freeze when completing basic interactions in Metal ES31 preview mode

Each changing collision response increases FPhysXTask count

calling SetCollisionResponseToChannel or something similar, FPhysXTask will ever increase . Finally, it causes serious frame rate drop. That count can be reset by calling RecreatePhysicsState. ...

DisplayThumbnail doesn't work with TArray

The DisplayThumbnail metadata UProperty specifier does not work on TArrays with the type of FSoftObjectPath. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7224811), 4.24 (CL - ...

Niagara Sample Static Mesh. Source Not Working

Static meshes are not rendered as particles when using the Static mesh module in Niagara and setting its source to a static mesh in the scene. Tested in 4.21.2 (CL -  4753647), 4.22 (CL - 7053647), ...

Crash when using VR Mode with Extra Viewports and a Camera Actor

From User: "Normally UE4 has an "Eject" button which is great for live-debugging your app, because you can see everything that's happening in your world, and see the World Outliner in realtime whil ...

Unnativized BP function fails to return a valid reference to a component when the calling BP is nativized

The nativized spawner receives an invalid reference from the non nativized actor and fails silently meaning the variable doesn't get set. Additional info: This issue happens when using a pure and n ...