Unreal Engine Issues
Unreal Engine Issues
ForEach 'Enum' node returns incorrect enum values
UE - Gameplay - Blueprint - Aug 21, 2015ForEach 'Enum' node returns incorrect enum values User Description: The For Each loop and Byte To Enum function return weird things. The same outputs happen with the Byte To Enum, depending on wh ...
Crash after generating HLODs for merged meshes that have all triangles culled
UE - World Creation - Worldbuilding Tools - HLOD - Jul 25, 2024Passing array from blueprint to C++ causes performance drop
UE - Gameplay - Blueprint - Sep 8, 2015Passing a blueprint array as an argument to a C++ function causes a spike in Frame rate, game and GPU. This spike is noticeable when using UnitGraph. Attached screenshots show difference in UnitGr ...
Deleting elements from TMap Struct in actor blueprint editor causes Crash
UE - Editor - UI Systems - Slate - May 24, 2019Deleting elements from TMap Struct in the Actor Blueprint Editor (specifically, deleting elements from them) causes Unreal to crash ...
PlaySoundAtLocation node not working in packaged IOS games
UE - Platform - Mobile - Jan 12, 2015Sound queues set to play with "Play Sound at Location" node don't play on a game packaged for IOS. **NOTE** User workaround mentioned that sound will come out from connected bluetooth. ...
MoviePipeline: Panoramic Renders don't work
UE - Anim - Sequencer - MRQ - Nov 10, 2022Images aren't just under exposed, they have values of 0.0 even in exrs - enabling the Debug Settings and writing out all samples shows the GPU is actually rendering black. ...
Farfield shadow in lumen scene
UE - Graphics Features - Jul 21, 2025Shadows in the Lumen Scene from Lumen's Direct Lighting do not match the world when in the Lumen Far Field. This leads to shadows where there should not be any, and missing shadows where there shou ...
BP Component is not destructible if the Object Type is set during runtime
UE - Simulation - Physics - Destruction - Mar 16, 2015BP Component is not destructible if the Object Type is set during runtime. If the Object Type is set manually before PIE is started, the BP component will destroy correctly. ...
Screen Probes and Specular Firefly Flickering near screen edges
UE - Graphics Features - Lumen - Aug 6, 2024Lumen's rough specular indirect lighting buffer can have fireflies along the bottom and right edges of the screen. Also tested in //UE5/Main, CL: 35177423 ...
Spawning a bp, setting the location, and simulating physics in one string will cause the Set Actor Location node to be ignored
UE - Gameplay - May 8, 2015Spawning a bp, setting the location, and simulating physics in one string will cause the Set Actor Location node to be ignored User Description: One is if you spawn a physics actor which has simu ...