Unreal Engine Issues
Unreal Engine Issues
Find Sessions Consistently Returning Results Length of 0
UE - Networking - Feb 24, 2017It appears that as of 4.15, there is an issue with creating/joining sessions. The attached test project worked fine previously in 4.14, but now is unable to join sessions. The user has stated: Th ...
Fix log spam when using a vive wireless adpater
UE - Platform - XR - Dec 19, 2018We need to handle TrackedDeviceClass_DisplayRedirect as a valid device in SteamVRController.cpp ...
Fix function forwarding in demo drivers in instant replays
UE - Networking - Jul 13, 2020Demo drivers that are actively playing back a replay while still connected to another server as a client (via game net driver) will generate warnings due to the function forwarding code (UNetDriver: ...
Multi-process cooking does not complete in UE5.3.0
UE - Core - Data Pipeline - Cooker - Sep 26, 2023Projects with multi-process cooking enabled will not complete packaging. If MPCook is disabled, packaging can be completed. ...
CopyTask in BuildGraph never throws an exception if the copy fails
Tech - BuildOps - Tools - Feb 28, 2023CopyFile function in CommandUtils.cs assumes that an exception will be thrown if the number of retries is exceeded, but the loop condition prevents it from being thrown. Following fix works:publics ...
Exiting PIE with dedicated server checked causes editor to crash on Linux
UE - Platform - Linux - Oct 25, 2016Checking the box for Dedicated Server in the Play dropdown menu causes the editor to crash when exiting PIE. This does not occur in 4.13 or 4.14 on Windows. ...
Assertion failed on reimporting FBX scene
zComponent - Archive - Aug 7, 2024Following code works as a work around : void SFbxSceneStaticMeshReimportListView::OnChangedOverrideOptions(TSharedPtr<FString> ItemSelected, ESelectInfo::Type SelectInfo) { #if 0 check(ItemSele ...
Children of editor-only actors do not maintain correct transforms when placed inside level instances for PIE and cooked builds
UE - Engine Scaling - Streaming - Level Instances - Oct 20, 2025We have found an issue where children of editor-only actors get wrong transforms in PIE and cooked builds when placed inside level instances. This affects both engine version 5.5 and 5.6. The issue ...
Major performance drop with instanced meshes since PhysX 3.4 upgrade
UE - Simulation - Physics - Mar 15, 2017Major performance drop with instanced meshes since PhysX 3.4 upgrade Regression: YES Worked: 3172292 (4.13.2) Broken: 3249277 (4.14.3) For me, my results were: 4.8 through 4.13 No Collision - ...
Duplicate slots being created in Anim Slot Manager
OLD - Anim - Dec 11, 2015Duplicate slots are being created automatically under the Default Group in the AnimSlotManager. This is causing some problems because it replaces the originally created slot with the duplicate in t ...