Unreal Engine Issues
Unreal Engine Issues
[CrashReport] Crash on Mac due to uncaught exception 'NSRangeException' - HIToolbox!DispatchEventToHandlers()
UE - Platform - Apple - Jun 22, 2017This is a common and longstanding community crash on Mac. Users have not provided descriptions when they crash, so additional information is currently not available. A log file is attached. Call ...
A SkeletalMesh component will spawn in rotated when setting the skeletal mesh and simulating physics on Begin Play
UE - Simulation - Physics - Jun 28, 2016A SkeletalMesh component will spawn in rotated when setting the skeletal mesh and simulating physics on Begin Play Adding a Delay between SetSkeletalMesh and SetSimulatePhysics will correct the iss ...
Destructible Mesh spawned before static mesh with World or Asset support is not supported
UE - Simulation - Physics - Destruction - Apr 27, 2015When using World Support or Asset Defined Support on a Destructible mesh that is spawned in, if the static world geometry is spawned in after the DM it will not be supported. However, if the static ...
The 'Set Constrained Components' node doesn't set the physics constraint components correctly if used in the Construction Script
UE - Simulation - Physics - Jan 20, 2015The 'Set Constrained Components' node doesn't set the physics constraint components correctly if used in the Construction Script. ...
Custom Time Dilation causes PhAT bodies to hover
UE - Simulation - Physics - Nov 5, 2015Custom Time Dilation causes PhAT bodies to hover This is not only happening with vehicles like the original bug described. This is also happening with PhAT skeletal meshes that are moving. https:/ ...
GeneratePsyms fails with installed builds due to missing dymp_syms tool and incorrect path space handling
UE - Platform - Apple - Nov 14, 2024Uncovered while testing [Link Removed] ...
Using Delay with Tick when Paused doesn't work
UE - Gameplay - Blueprint - May 28, 2015Using a delay node in an event graph of actor using tick when paused will not work. It pauses the delay node. ...
Crash when calling SetState inside state machine OnUpdate
UE - Anim - Sep 5, 2025The crash happens when SetState is called inside the function bound to OutputAnimationPose’s OnUpdate in the animation state. This way of using Set State node is the same as shown in the official do ...
Visual Studio builds currently fail when a project includes a UFUNCTION with Server, Reliable, and WithValidation specifiers (with appropriate definitions in the source file).
UE - Networking - Apr 1, 2015Using UFUNCTION(Server, Reliable, WithValidation) with an RPC function results in a failed build in Visual Studio. The same test in Main yields a different set of error messages. ...
Destructible attached with a Physics Constraint have inconsistent physics
UE - Simulation - Physics - Destruction - Jul 26, 2016Destructible attached with a Physics Constraint have inconsistent physics compared to a standard Static Mesh. This is also sometimes prevalent with Destructibles that aren't attached with a Physics ...