Unreal Engine Issues
Unreal Engine Issues
Open Marketplace button is unresponsive
Portal - Jun 8, 2021When pressing the Open Marketplace button in UE5 or the Marketplace button in UE4, nothing happens. This occurs in both UE5 Early Access and UE4 4.26.2. Tested in //UE4/Release-4.25 @ CL 14469661 ...
Editor crashes when dragging the BP_LightStudio asset into the level
UE - Graphics Features - Aug 12, 2021When dragging the BP_LightStudio asset, that is included in Starter Content, the engine crashes. Out of the 4 times I reproduced this, one of the instances didn't crash until I dragged the BP_LightS ...
[Spatialization] - When a sound starts playing while the listener in in the Binaural Radius, when they exit the sound stops playing
UE - Audio - Spatialization - Nov 18, 2021If a sound starts playing while the listener is inside the binarual radius, the sound stops abruptly when they leave the radius. Does not occur if the listener starts in the binaural radius. Does no ...
[Audio][Niagara] - Audio Spectrum only reacts to Channel 0, despite setting to another channel
UE - Audio - Submixes - Jun 6, 2023While doing some extra testing of the Submix Analyser fixes, I noticed there is a setting to set the channel of the submix to give the analyser. It always works for channel 0, but changing it to any ...
Non-edit layers landscape don't work adequately with Nanite landscape while painting
UE - Graphics Tools - Terrain - Landscape - Oct 24, 2023Result : while displaying the Nanite version of the landscape, the paint layers behave erratically (see video : [Link Removed]) If rebuilding the Nanite data, the bug gets fixed until the user sta ...
PhysicsControl-enabled controls occasionally teleport to origin
UE - Anim - Apr 22, 2024Occasionally, PhysicsControl controls will teleport to the world origin. This is sporadic and generally fixes itself either with a restart. In the licensee's case, the controls were also animation d ...
Logic error in TRange::Difference causes crash when you Trim and Preserve Left/Right and unbounded Attach section in the sequencer
UE - Anim - Sequencer - Aug 1, 2024TRange::Difference function does not handle bounds correctly, causes crash in the sequencer when "Trim And Preserve Left/Right" is used in the user's example project. User provided a potential fix: ...
bIncludeComponentLocationIntoBounds breaks bounds calculations
UE - Anim - Runtime - Aug 13, 2025Bounds generation when bIncludeComponentLocationIntoBounds is active is broken. Both the calculation of the local bounds and the world bounds are incorrect (see screenshot). When that flag is acti ...
Physics Mover: AI movement and collisions can cause sharp increase in velocity
UE - Gameplay - Player Movement - Mover - Aug 19, 2025A pawn using the physics mover and using AI movement can sometimes gain an ton of velocity quickly upon colliding with another physics object. It seems to fix it self and revert back to it's origina ...
Crash after generating HLODs for approximated meshes that have all triangles culled
UE - World Creation - Worldbuilding Tools - HLOD - Apr 26, 2023The crash occurs when FWorldPartitionHLODUtilities::BuildHLOD attempts to build an approximated mesh that has all of its contents culled during generation, this can happen when an approximated mesh ...