Static, non-replicated actors have different role to dynamically spawned actors

UE - Networking - May 23, 2023

For a non-replicated actor, the expected values for its local and remote roles would be ROLE_Authority and ROLE_None respectively. However, in ULevel::InitializeNetworkActors, ExchangeNetRoles(true) ...

Content Browser 1 Inconsistent Behavior with Tabs

UE - Editor - Verse Class Editor - May 22, 2023

"Content Browser 1" auto-hides if opened with the Level Editor, and has inconsistent docking behavior under the conditions caused by the repro steps above. The root of the problem seems to be that ...

Merge Actors Tool Simplifies Nanite Meshes

UE - Engine Scaling - Streaming - Merge Actor - May 19, 2023

Tried every combination of LOD Selection Type, Nanite enanbled/disabled, the only way it would seem to get the full number of triangles from the source mesh into the merged mesh is to disable Nanite ...

Deferred spawned actors can receive BeginPlay before they are finished spawning

UE - Framework - May 18, 2023

Actors that are deferred spawned on BeginPlay can be added to the world while AWorldSettings::NotifyBeginPlay is still iterating the world's actors and dispatching BeginPlay. AActor::DispatchBeginPl ...

Variant Thumbnails are washed out

UE - Editor - Open File Formats - Variants - May 11, 2023

I think somewhere in Thumbnail Generator::Generate Thumbnail FromTexture() is applying this washout. ...

Replicated subobjects list crashes with unreachable yet valid objects when UE_NET_SUBOBJECTLIST_WEAKPTR=0

UE - Networking - May 8, 2023

This seems to occur when the subobject is considered unreachable but is not yet pending kill/marked as garbage. In this case, IsValid returns true while FWeakObjectPtr::Get returns nullptr for the o ...

Indirect Capsule Shadows showing up on Unlit Characters

UE - Rendering - Features - May 5, 2023

For this to be observed, Allow Static Lighting must be true in project settings. This appears to be coming from an AO pass and from a Raytraced Indirect Capsule Shadows. ...

Server doesn't process anim notifies with montage tick type set to queued when bad network conditions occur

UE - MVF Character - Animation - May 3, 2023

After some testing this issue looks to only occur with queued notifies and not with branching point notifies. UDN: https://udn.unrealengine.com/s/question/0D54z00009643x4CAA/server-doesnt-process-a ...

Dropped encryption ack control message can result in connection failure

UE - Networking - Apr 28, 2023

When connecting a client using encryption, the server's NetConnection sends the encryption ack and then immediately enables encryption (UNetConnection::EnableEncryptionServer). In the case where the ...

iOS ReplayKit isn't working in UE5.1+

UE - Platform - Mac - Apr 21, 2023

In 4.27 & 5.0 when you press the in-app screen recorder button it would pop-up a msg about the user giving permission to allow the screen recording and then would start the recorder and save the mov ...