Unreal Engine Issues
Unreal Engine Issues
Collision preset in StaticmeshComponent in BP instance can not be correctly modified
UE - Simulation - Physics - Jul 3, 2020For staticmesh component in a staticmesh actor instance, the collision preset can be modified correctly. ...
Executing r.setres does not render correctly when Orientation of Display is Portrait on Windows PC
UE - Rendering Architecture - RHI - Feb 5, 2021This issue will display correctly in Portrait if you don't specify a resolution, but using r.setres will display it incorrectly. ...
Clothing tool may generate an unsmooth display mesh on 4.26
UE - Simulation - Physics - Character - Mar 23, 2021This is related to the optimization applied in CL#13181876. Binding simulation mesh to display mesh can't find the nearest triangle when a triangle is located near the AABB boundary. ...
[Sequencer][Audio] - Soloing a nested audio track mutes all tracks
UE - Audio - Sequencer - Jan 20, 2022When soloing an audio track in sequencer, all the tracks are muted and nothing in soloed. Attached video shows Mute working correctly followed by Solo not working[Link Removed] Cannot reproduce i ...
ActorComponent's focus changes unintentionally
UE - Gameplay - Blueprint Editor - Apr 13, 2022If you do not compile at the inherited actor, the problem does not occur. ...
Network Emulation outgoing dropped packets on client higher than expected
UE - Networking - Oct 14, 2022Under certain network emulation settings, it looks like outgoing packets from the client will be dropped in groups (around 4 or more packets at a time) rather than individually. This leads to the ac ...
PIE crash on infinite loop in a BP construction script
UE - Gameplay - Blueprint Runtime - Oct 19, 2023From the [Link Removed]: We had an issue where PIE was being stopped due to an "infinite loop" being detected in one of the blueprints construction script. This was also crashing the editor as the ...
Opening Sprite assets or Paper Flipbook crashes the engine in 5.3
UE - Gameplay - Paper2D - Apr 16, 2024Licensee was not able to open any Sprite asset file in 5.3 without it causing a crash. They were able to avoid this by disabling raytracing in the project. ...
FD3D12BindlessResourceManager::GrowCPUHeap will cause GPU heap activation whether it's needed or not
UE - Rendering Architecture - RHI - Sep 11, 2025The ctor of FD3D12BindlessResourceManager implies that GPU heap activation is intended to occur lazily with ERHIBindlessConfiguration::RayTracingShaders, however any call to FD3D12BindlessResourceMa ...
Attempting to override timeline function in child blueprint crashes editor
UE - Gameplay - Blueprint - Sep 24, 2015Attempting to override a timeline within a child blueprint causes the editor to crash. Frequency: 4/4 Crashreporter: [Link Removed] ...