Unreal Engine Issues
Unreal Engine Issues
bIgnoreAllPressedKeysUntilRelease only applies to keys in the previous mapping
UE - Gameplay - Input - Jun 16, 2022This is because the RebuildControlMappings function only checks this flag when you have a mapping that was already added, we should apply this for any new mappings as well. I'll update the repro s ...
Disabling bLerpUVs in Nanite Settings of Static Mesh causes texture warping in clusters
UE - Graphics Features - Nanite - Jan 21, 2025The licensee has identified a potential fix by changing if( Settings.bLerpUVs ) to if( Settings.bLerpUVs || UVIndex == 0 ) On line 389 of NaniteBuilder\Private\Cluster.cpp in UE 5.5 ...
Copy-pasting custom property nodes (ControRig etc.) results in invalid bindings, perf issues
UE - Anim - Rigging - Control Rig - Jul 28, 2025From this UDN: [Link Removed] Suggested fix:Override PostPasteNode to perform the GUID update andAdd validation on load to strip 'invalid' copies that do not correspond to a valid pin input ...
Crash opening levels with landscape in them via the command console in standalone game
UE - LD & Modeling - Terrain - Landscape - Aug 8, 2016Standalone game is crashing when opening certain maps using the command console. Crashed QA-Promotion QA-Landscape TM-VRSmoke No Crash QA-Decals QAEntry ...
Editor crash when adding a spline component after having deleted another spline component
UE - Gameplay - Sep 26, 2016After adding a duplicate spline point, removing the spline component while the duplicated point is selected and creating a new spline in its place causes the editor to crash. Crash Reporter: [Link ...
Crash Occurs When Using Invalid HideCategories
UE - Gameplay - Blueprint - Aug 8, 2016The licensee is experiencing a crash when using UCLASS(HideCategories = (Activation, LOD, Collision, Rendering, TextureStreaming, Lighting, Mobile, Transform, Physics, Tags)) This crash occurs afte ...
Float Curve that is set as a local variable in an actor's function is garbage collected when in Standalone, causing a crash
UE - Gameplay - Blueprint - Sep 9, 2016If a Curve Float local variable is created for a function, it will be garbage collected when garbage collection occurs. This causes the process to crash due to an null pointer error whenever it is r ...
Editor crashes when copying a copied instance of a blueprint in the level.
UE - Gameplay - Blueprint - Aug 9, 2016Editor is crashing when copying a copied instance of a blueprint in the level. We were unable to reproduce this issue adding a component to the blueprint through the blueprint editor. This issue on ...
Standalone window played from editor hits assert Index >= 0 in UObjectArray
UE - Gameplay - Blueprint - Sep 23, 2016Standalone window in editor will hit assert in a bit of time. Issue doesn't happen is playing standalone via Visual Studio. ...
Setting FActorSpawnParameters::bRemoteOwned causes inconsistent behavior when spawning actors
UE - Gameplay - Sep 13, 2016If FActorSpawnParameters::bRemoteOwned is set to true, calling SpawnActor with this spawn param on begin play has different behavior than calling the SpawnActor elsewhere during runtime. If using n ...