Unreal Engine Issues
Unreal Engine Issues
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 ...
Actors transforms broken in cooked builds when their parent is an IsEditorOnlyActor
UE - Framework - Oct 7, 2025When creating a hierarchy of Actors in the Outliner, the transform of the "child" actors will be reset if their Parent's IsEditorOnlyActor property is true. The project in the EPS case is using ...
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 ...
Switching to different modes in the Modes panel causes PIE to take input from a connected VR headset for the Y axis camera movement
UE - Platform - XR - Dec 9, 2016If a VR headset is connected, it will be used for Y axis camera input in PIE if you have switched to and from the Landscape tab in the Modes panel. You can fix this temporarily by reopening the edit ...
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 ...
Pin wires do not connect correctly after collapse to function and duplication
UE - Gameplay - Blueprint - Mar 20, 2017Pin wires do not connect correctly after collapse to function and duplication. Any node can cause this issue, I used an INT variable because it was quick to test with. Regression: This issue affect ...
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 ...
[CrashReport] Mac crash in UE4Editor-Engine.dylib!LoadPhysXModules()::$_0::operator()()
UE - Platform - Apple - Jun 8, 2017This is a common Mac crash that has been occurring since 4.15. It shares the same callstack with [Link Removed], but that was verified fixed for 4.16.0, while this crash still continues into 4.16. ...