Unreal Engine Issues
Unreal Engine Issues
[AI] Stack overflow in canRemoveVertex of DetourTileCacheBuilder
UE - Runtime - Character - Sep 28, 2023User reports of stack overflow happening in canRemoveVertex in DetourTileCacheBuilder.cpp if a poly has more than 16 vertices. The array for edges is a fixed array and is written to without checking ...
Light function broken on AMD GPUs
UE - Rendering - Architecture - Dec 6, 2023The licensee reported this happening on the following cards with the latest driver versions: ● RX 6600 ● RX 5700 The Licensee reported it did not happen on these cards: ● RX 580 ● Non-AMD cards Our ...
Lumen with HWRT has an artifact on AMD GPU
UE - Graphics Features - Lumen - Feb 6, 2024Repro test required.We don't have AMD GPU to create the same environment here, so we collected reproduction information from the licensee and passed it on as is.Let me know if you need any additiona ...
Gameplay Debugger does not currently support basic input chords
UE - Gameplay - Input - May 21, 2024A note from the user, seems like they have a fix for this already I've changed the type of UGameplayDebuggerConfig::ActivationKey to FInputChord and with ony small changes to surrounding code it ...
Depth of Field blur is inconsistent with r.ScreenPercentage == 100 (Dynamic resolution)
UE - Graphics Features - Oct 29, 2024Depth of Field, with "r.DOF.Recombine.Quality = 0" will adjust the size of the depth in focus based on screen percentage. This might be related to over-fitting from the tile classification, because ...
Cut & Paste in Sequencer breaks with Attach track
zComponent - Archive - Jan 15, 2025Cutting two tracks in sequencer, which one is attached to another one, and pasting it break with Attach track. By this operation, Attack track loses its binding object. Copying such tracks and paste ...
MID TextureCollections don't work with Post Process Overlays
UE - Rendering - RHI - Aug 24, 2026TextureCollectionParameters in a material assigned to a Post Process Overlay are not overridden by a MID because CopyInterpParameters in Engine\Source\Runtime\Engine\Private\Materials\MaterialInsta ...
ASan on iOS is broken
UE - Platform - Apple - Mar 1, 2024Address Sanitizer (asan) is currently not working on iOS. This could be a helpful feature to get working again. ...
CheckForWorldGCLeaks crash using New Level from Template node to duplicate sublevel of the currently loaded level
Tools - Feb 23, 2021A world leak crash occurs when using NewLevelFromTemplate to duplicate a sublevel of the currently loaded level. The crash doesn't manifest until another level is loaded even though the Sublevel ins ...
Chaos + iOS Preview rendering crash
UE - Simulation - Physics - Sep 11, 2019Geometry Collection crash on PIE in iOS preview. ...