Unreal Engine Issues
Unreal Engine Issues
Undo change to Rest Offset causing crash in Static Mesh Editor
UE - Simulation - Core - Aug 8, 2023When undoing any change to Rest Offset for a collision mesh the engine will crash. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binary //UE5/Release- ...
Free physics constraints between two objects of differing size causes smaller object to jitter
UE - Simulation - Core - Sep 13, 2023A cube constrained to a physics actor will start to jitter uncontrollably when interacted with. (see attached media and repro steps for more details) Tested in the following //UE5-Release-5.3-CL ...
Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly
UE - Anim - Rigging - Retargeting - Feb 13, 2025Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted. Users have to refresh the properties that select the base pose in order to fix the ...
Niagara - The "Apply" button on the toolbar does not get enabled when changing the checked state of an entry in "Propagated Static Switch Values" for a function call node.
UE - Niagara - Apr 7, 2025Consider a Niagara Function Script containing a Static Switch node with the "Expose as Pin" option disabled for its selector variable. Now consider another Niagara Function Script or Module Script ...
Niagara - When a Static Switch is used inside a Niagara Function Script with "expose as pin" disabled, its Selector variable is exposed as an input on function call nodes. However, this input incorrectly loses its "static" type.
UE - Niagara - Apr 7, 2025Consider a Niagara Function Script containing a Static Switch node with the "Expose as Pin" option disabled for its selector variable. When the function is called by another Niagara Function or Niag ...
Editor is crashing on Startup after opening a copy of older project
UE - Foundation - Core - Jan 16, 2015Edit: Looks like failing to read the DDC when compiling global shaders User is getting a crash when they are attempting to open a copy of their project from version 4.4.3. Attached CrashLogs, DXd ...
Custom lighting channels ignored when object culled in stereoscopic
UE - Platform - XR - Apr 14, 2016When a light that uses lighting channels is only visible in one view during stereoscopic rendering, it affects the default light channel instead of the assigned one in the view that it's not visible ...
LIVE: Memory spikes when importing a json with a large amount of sprites
UE - Gameplay - Paper2D - Oct 24, 2014While importing a json file with a large amount of sprites, memory usage spikes. The test asset uses a 2000x128 texture with 1024 elements. ...
Low FPS in Kite Demo
Tools - Mar 9, 2017When attempting to play the GDC_Landscape_01 map in Editor or as Standalone Game, game plays with very low FPS ~ 3-10 on machines that should be able to handle 30+. While testing for regression, ra ...
Mesh vanishes on BP compile (components created by components issue)
UE - Gameplay - Blueprint - Mar 29, 2017When a mesh is declared in a custom component class and that component is added to an actor class, compiling a blueprint based on the actor class will cause the mesh set in the component to vanish i ...