Unreal Engine Issues
Unreal Engine Issues
FPS Perf Regression on 980
UE - Graphics Features - Mar 17, 2015At least one user has so far reported a noticeable drop in FPS from 4.6.1 to 4.7.2 in a heavy scene; using a GTX 980. I've reproduced a perf drop in a cooked 4.7 build of elemental demo compared to ...
AMD PSO creation causes hang in SceneCapture2D with Nanite + ShowOnly primitives
UE - Graphics Features - Nanite - Jan 16, 2024AMD RX 6800 XT driver appears to hang (or take a very long time) in the PSO creation of the FInstanceCullVSM_CS shader when using Nanite primitive filtering NOTES:Issue can be worked around by addi ...
[CrashReport] UE4Editor_CoreUObject!FLinkerPlaceholderObjectImpl::FindRawPlaceholderContainer() [linkerplaceholderbase.cpp:161]
UE - Gameplay - Blueprint - Sep 27, 2017This is currently among the top 10 crashes coming out of the 4.17.2 hotfix, affecting a few unique users, and this specific callstack does not appear to have occurred in 4.17.1. This may be a regres ...
Crash after network disconnection/pulling network cable
UE - Networking - Jul 11, 2019A 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 ...
Landscape Layer Blend generates bad code for preview shader
UE - LD & Modeling - Terrain - Landscape - Sep 23, 2019It breaks only when compiling the preview shader. Adding a preview weight to the Layer0 on the Layer Blend node fixes the problem. The source of the bug is in UMaterialExpressionLandscapeLayerBlend ...
Requesting Android Permissions causes an Ensure on Android Devices
UE - Platform - Mobile - Nov 14, 2022Regression: Tested in UE5/Release-5.0 at CL 20979098 and the issue occurs. Issue would load in to the project without asking for permission and cause an ensure to occur, in 5.0.3 the issue would ca ...
Syncing changes in multi-user editing tool results in crash
UE - Virtual Production - Tools - Multi-user - Dec 18, 2019When using the multi-user editing tool inside a 4.24 project, persisting changes will sometimes result in a crash. Unable to reproduce the issue. However, the user has reported occasionally re ...
Crash: Using Sequencer to attach an actor with multiple skeletal mesh components crashes the editor
UE - Anim - Sequencer - Nov 30, 2016When using an Attach track in sequencer to attach an actor that contains more than one skeletal mesh component, the UI to choose which mesh component to attach to pops up, but then the editor hangs ...
CachedMaxDrawDistance value are not updated by CullDistanceVolume in persistent Level
UE - World Creation - Worldbuilding Tools - World Composition - Dec 16, 2022in PIE, RerunConstructionScript() is executed and actor's CachedMaxDrawDistance is updated as expected. in packaged game, RerunConstructionScript() is not executed so, CullDistanceVolume is not u ...
Custom Events set to Replicate do not show the replication information on the node until the Editor is restarted
UE - Gameplay - Blueprint - Mar 3, 2015Custom Events set to Replicate do not show the replication information on the node until the Editor is restarted. For example, after setting a Custom Event to Multicast, the "Replicated From Server ...