Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_PropertyEditor!SDetailSingleItemRow::OnArrayDrop() [sdetailsingleitemrow.cpp:172]
Tools - Oct 10, 2017This is a trending crash coming out of the 4.18 previews. Users have not provided any descriptions of their actions when the crash occurred. The callstack shares similarities to [Link Removed] whi ...
iOS Show External Login UI Blueprint Node fails on new iOS devices
UE - Online - Jun 6, 2019I have been trying to test iOS online subsystem functionality for my game and thought that this blueprint node was just broken. This bug will probably catch many UE4 developers that are new to iOS b ...
BlendSpace DeltaTimeRecord.Delta can incorrectly be set to zero
UE - Runtime - Animation - Apr 19, 2024It's possible for blendspaces to end up with an invalid delta time record because of how UBlendSpace::TickAssetPlayer modifies the time record. This only seems to happen with specific settings:Axis ...
Tick functions are skipped on the first frame in package build and standalone PIE
UE - Gameplay - May 19, 2025It's reported that all Tick functions are skipped on the first frame when running in packaged builds and standalone PIE. This is because both TickVisitedGFrameCounter and GFrameCounter are initializ ...
Reversed Animations don't play properly using Skeletal Mesh Pose and animations with Keep State in Sequencer
UE - Anim - Sequencer - Nov 26, 2018The bug seems to only reproduce when setting animations in sequencer and only if the animations are set to "Keep state". Setting them to "restore default" makes the reversed animation play correctly ...
Starter Content's "P_Explosion" does not successfully convert to a Niagara System - incorrect loop, spawn, sprite size, and collision behaviors
UE - Rendering - Architecture - Niagara - Mar 17, 2022Starter Content's "P_Explosion" does not successfully convert to a Niagara System - incorrect loop, spawn, sprite size, and collision behaviors Changes needed for / issues found with each emitter:A ...
AssetManager: PrimaryAssets: Allow PrimaryAssetTypesToScan entries to be extended from plugins to add directories
UE - Core - Data Pipeline - Cooker - Feb 23, 2023Game.ini:[/Script/Engine/AssetManagerSettings]:PrimaryAssetTypes is an ini setting to specify which PrimaryAssets should be used by the engine during cook to specify which packages gets cooked and w ...
Spline Mesh regression on older iOS phone
UE - Platform - Mobile - Jun 10, 2019Regression with rendering Spline Mesh Components seen on older (5s) iOS device. I did not reproduce a crash with an iPadPro A1701 or an Android Note 4 Confirmed in 4.23 MAIN at CL 6910902 ...
Physics Asset details window jitters when shrunk.
Tools - Sep 29, 2014Branch Build Label UE4-Main Promoted-CL- 2306964 DESCRIPTION: When using the vehicle template and having any wheel selected inside the physics asset, shrinking the size of the details window ca ...
[CrashReport] Assertion failed: *LinkedTo == RequestingPin [edgraphpin.cpp:1747]
UE - Gameplay - Blueprint - Aug 29, 2017This is a common crash occurring in 4.17 and back to at least 4.15. User Descriptionspress cntr Z Source Context 1734 check(ResolveType == EPinResolveType::LinkedTo); 1735 ...