Unreal Engine Issues
Unreal Engine Issues
[CrashReport] FSlateRHIRenderer::ConditionalResizeViewport()
Tools - Jul 27, 2017This is a common crash occurring on Windows and Mac in 4.15 and 4.16 (two different callstacks with close similarities). The callstack is also similar to [Link Removed] and may be related. User D ...
UClass::SparseClassDataStruct null at editor-time for child blueprints until compile
UE - Framework - Blueprint - May 29, 2024Child blueprints of a blueprint of a native actor class with sparse data can have an incorrectly null SparseClassDataStruct value, and thus fail to initialzie their SparseClassData. This affects edi ...
Crash when force deleting Dataflow Graph
UE - Editor - Jul 31, 2023When force deleting a dataflow graph with the dataflow graph editor open it will crash the engine. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binar ...
Actors not marked as Always Relevant do not replicate to Clients that have possessed a vehicle past 15,000 units of the point of possession
UE - Networking - Oct 20, 2015Actors not marked as Always Relevant do not replicate to Clients that have possessed a vehicle past 15,000 units (the sq root of Net Cull Distance Squared) of the point of possession. Note that repl ...
An InstancedStaticMesh component set to Stationary doesn't register overlaps
UE - Simulation - Physics - Dec 16, 2016An InstancedStaticMesh component set to Stationary doesn't register overlaps. However, overlaps are registered on Static and Movable. There is also an issue where actors that start overlapped with ...
The AABBTree spatial acceleration structure goes off-sync when physics substepping is enabled in a "low" framerate environment.
UE - Runtime - Simulation - Mar 15, 2024When you enable the physics substepping, if you run the console command p.Chaos.Solver.DebugDrawSpatialAccelerationStructure 1, you can see how does not follow the physical object. The user that rep ...
Setting a parent and child static mesh scale to negative effects the rotation on child movement
UE - Gameplay - Jun 1, 2016Setting a parent and child static mesh scale to negative effects the rotation on child movement This is a regression. Worked in 4.11.2. User Description: We have a simple project example (see att ...
Localization manifest writing fails if source control is hooked up and the manifest file does not exist already.
UE - Editor - UI Systems - Localization - Jun 16, 2015First one happens on a clear project without any localization settings ever made. Gather Text commandlet log has theese lines in it: [2015.06.16-13.21.56:396][ 0]LogInit:Display: SourceControl:Err ...
Crash when applying Decal material with Distance Cull Fade node to Decal Actor
UE - Rendering - Architecture - Materials - Jun 15, 2026The Editor crashes when applying a Material with a Distance Cull Fade node to a Decal Actor. Fatal error: [Link Removed] [Line: 730] Missing uniform buffer at slot 2, stage SF_Pixel. Please check ...
Assertion failed: (Index >= 0) & (Index < ArrayNum) when importing large Alembic file
UE - Editor - Content Pipeline - Datasmith - Importer - May 3, 2022Regression testing done on //UE4/Release-4.27.2 CL-18427296 and this issue did occur. [Link Removed] [Link Removed] Below is snips of customers description and proposed workaround:Importing alembi ...