Unreal Engine Issues
Unreal Engine Issues
USplineComponent::GetDistanceAlongSplineAtSplineInputKey returns incorrect result when input keys are not sequential
UE - Editor - Workflow Systems - May 18, 2022USplineComponent::GetDistanceAlongSplineAtInputKey() returns the wrong value when the input keys are not sequential because it interprets the input key argument as the spline point index. Thus if th ...
ComponentOverlapMultiByChannel with a rotated simple collision PrimComp misses overlap vs. complex collision
UE - Simulation - Physics - Query - Nov 8, 2023UWorld::ComponentOverlapMultiByChannel and internally, the call to FBodyInstance::OverlapMulti, misses overlaps and blocking hits when the PrimComp's (the component used to test overlaps) mesh uses ...
[CrashReport] UE4Editor-ApplicationCore.dylib!invocation function for block in FMacApplication::DeferEvent()
UE - Platform - Apple - Dec 1, 2017This is an infrequent Mac crash in 4.18.1. Users have not provided any descriptions. Callstack from Log2017.11.27-02.08.07:839][947]LogMaterial: Missing cached shader map for material FLightmassMat ...
"SetOwnerNoSee" setting does not work on Nanite meshe
UE - Graphics Features - Nanite - Nov 15, 2022Licensee description of project: There is a pawn with 4 cubes attached, the 2 red on the left are "normal" static meshes, and the 2 green on the right are Nanite meshes. The 2 bottom cubes have "se ...
Setting AnimationMode to "UseAnimationAsset" inside Sequencer might not be set properly.
UE - Anim - Sequencer - Sep 30, 2024Adding a new key inside a LevelSequence that changes the AnimationMode of a SkeletalMesh to "Use Animation Asset" can bug out the AnimationMode constantly change between "UseCustomMode" and "UseAnim ...
Niagara Emitter editor forgets Timeline playback ranges
UE - Niagara - Sep 14, 2020This seems to only affect an emitter and not a system asset. ...
Enabling Allow Client Side Navigation results in a NavMesh Needs To Be Rebuilt error message on the Client
UE - AI - Dec 7, 2015Enabling Allow Client Side Navigation results in a NavMesh Needs To Be Rebuilt error message on the Client. The Client cannot use the nav mesh. This is a regression: this did not occur in 4.9.2 (th ...
"Unreal Match 3" Demo Stuck While Syncing
Docs - Samples - Apr 5, 2016When attempting to download/sync to the UE4.11 version of "Unreal Match 3" sample from the Learn Tab on the launcher, the download button is "grayed out" and instead says "Syncing." Selecting the ...
Cannot Increment an Element of an Array
UE - Gameplay - Blueprint - Apr 15, 2016Attempting to increment the value of an array element does not seem to work, and instead returns the original value that was passed into the increment int node. Found in 4.11.1 binary. Reproduced i ...
[CrashReport] UE4Editor-CoreUObject.dylib!UPackage::Save() during COTF
UE - Foundation - Core - Cooker - Nov 21, 2017This is a common Mac crash that has occurred since at least 4.17.1 User DescriptionsJust trying to launch my project on any output I can. No luck.launching AR project on IOS device. Ugg. Last adjus ...