Unreal Engine Issues
Unreal Engine Issues
Replicated subobjects list crashes with unreachable yet valid objects when UE_NET_SUBOBJECTLIST_WEAKPTR=0
UE - Networking - May 8, 2023This 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 ...
Widget defaults not updated when modified on a base widget class via the hierarchy
UE - Editor - UI Systems - UMG - May 3, 2023A licensee has reported an inconsistency in how modified base widget class defaults are propagated to children. When modified via the UMG Designer Graph's Class Defaults, derived classes will be mar ...
Dropped encryption ack control message can result in connection failure
UE - Networking - Apr 28, 2023When 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 ...
Actor corruption due to Hierarchy broken after load
UE - World Creation - Worldbuilding Tools - World Partition - Apr 25, 2023We recently hit a situation where some actors would suddenly teleport across the map when they were modified in the editor. We figured out that the AttachParent of some actors got reset on editor l ...
iOS ReplayKit isn't working in UE5.1+
UE - Platform - Apple - Apr 21, 2023In 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 ...
Toggle Folder Visibility Inconsistent in Scene Outliner With Search
UE - Editor - Workflow Systems - Apr 20, 2023In the scene outliner, if you add a folder with one visible actor in it, and filter out some of the actors, users are unable to toggle the visibility of the folder anymore, or they are only able to ...
Editor becomes unresponsive/freezes when a Geometry Collection is destroyed by a Hit Event while simulating
UE - Simulation - Physics - Destruction - Apr 19, 2023This is a regression. Tested in //UE5/Release-5.1 CL23901901 When a geometry collection is destroyed by an On Hit event the editor becomes unresponsive and never recovers. No crash is generated. ...
Lumen tile classification flicker
UE - Graphics Features - Lumen - Apr 19, 2023While we suggest using screenpercentage at 25%, it is visible at higher percentages. Video showing the flickering:https://udn.unrealengine.com/s/contentdocument/0694z00000Qw4jPAAR ...
MaterialBaking LocalSpace Issue
UE - World Creation - Worldbuilding Tools - Merge Actor - Apr 14, 2023See attached project for a good repro ...
ReversedDepthOnlyIndexBuffer exported even when bEnableDepthOnlyIndexBuffer is false
UE - Graphics Features - Apr 14, 2023ReversedDepthOnlyIndexBuffer is exported even when bEnableDepthOnlyIndexBuffer is false. It's likely an error and line 568 in StaticMesh.cpp should rather be ://if (!bEnableReversedIndexBuffer) <= ...