Unreal Engine Issues
Unreal Engine Issues
FMaterialResource::IsDualBlendingEnabled bug
UE - Rendering Architecture - Materials - Jul 24, 2023The user has a proposed fix for this in the case. FMaterialResource::IsDualBlendingEnabled needs the following modification that includes MaterialInstance check: bool bMaterialRequestsDualSourceBle ...
Auto Exposure Compensation Curve issue when switching from Histogram to Manual
UE - Rendering Architecture - Feb 21, 2024When switching the Camera's Exposure Metering Mode from Histogram to Manual, there is a single-frame flash. The Licensee has a proposed code change that would fix this issue. Also found in 5.4, CL 3 ...
Performance hitch from RemoveGeometryCache flushing the render thread
UE - Editor - Content Pipeline - Alembic - Jun 12, 2025FGeometryCacheStreamingManager::RemoveGeometryCache calls FlushRenderingCommands which shows up as a hitch when profiling. [Link Removed] Ideally the flush added in CL#23782411 to fix a rare deadl ...
[CrashReport] UE4Editor_Kismet!SBlueprintPaletteItem::OnNameTextCommitted() [sblueprintpalette.cpp:1319]
UE - Gameplay - Blueprint - Sep 28, 2017This is a trending crash after the 4.17.2 hotfix, although it has existed since the 4.16.1 hotfix. User Descriptionswas creating a new graph in a blueprint ...
Crash Occurs on Exiting Standalone After Using DemoPlay
UE - Networking - Mar 2, 2017Using Execute Console Command nodes to record and play back a demo is causing a crash in standalone. Using the console commands themselves does not seem to cause the same crash to occur. ...
FFieldPath resolution doesn't handle redirection
UE - CoreTech - Feb 16, 2022A licensee has found that redirectors don't apply to FFieldPath. We should integrate it with the following changes:It needs better error handling (looks like it could infinitely recurse),The change ...
4.6 Delegate error in Blueprints
UE - Gameplay - Blueprint - Dec 12, 2014When looking into the bd_hud_scoring and bd_rules_maze blueprints in the users project (Provided below), there are nodes that are throwing errors. If you press compile, the errors go away and the co ...
PN Tessellation and Grass Node Crash Engine
UE - LD & Modeling - Terrain - Landscape - May 14, 2015Landscape Materials which use the new Grass Output and have Tessellation turned to PNTriangles will crash the engine Also reproduced in Main Promotable-CL-2550487 & Releases/4.8/Promoted-CL-255045 ...
Windows SDKs not recognized for HoloLens Development
UE - Platform - XR - Jun 5, 2023This is a regression as the issue does not occur in //UE5/Release-5.1 @ CL 23901901 ...
[CrashReporter] UE4Editor-PropertyEditor!FPropertyNode::GetDiffersFromDefaultForObject(FPropertyItemValueDataTrackerSlate &,UProperty *) [PropertyNode.cpp:1634]
UE - LD & Modeling - Terrain - Landscape - Sep 13, 2019Generated from CrashReporter ErrorMessage: Unhandled exception Callstack similar to [Link Removed] comments from community: Clicked on a procedural grass node in the Brushify material This ...