Unreal Engine Issues
Unreal Engine Issues
Landscape Visibility Tool crashes editor
UE - LD & Modeling - Terrain - Landscape - Feb 20, 2015Editor crashes when landscape visibility tool is used on landscape. Frequency: 2/2 Crash Reporter: [Link Removed] ...
Editor crashes on Mac when launching with the command -MacExplicitRenderer=0
UE - Graphics Features - Jan 19, 2017Trying to launch the editor with the command -MacExplicitRenderer=0 causes a crash. At the time of the crash, the following line appears in the log:LogMac:Error: appError called: Assertion failed: A ...
Crash converting code project 4.7 to 4.8 ; Array index out of Bounds
UE - Gameplay - Blueprint - Jun 18, 2015Some users are experiencing a crash when converting their project from 4.7 to 4.8. From user reports it appears to be affecting those who have added code to their projects and created blueprints bas ...
PhysX crash when SetMaterial is called
UE - Simulation - Physics - Mar 14, 2016When provided sample project is run in PIE, crash occurs after call to SetMaterial() is made in code. Downloadable Project: [Link Removed] CrashReporter: [Link Removed] ...
User's project crashes on the Lenovo S939 when an external window pops up
UE - Platform - Mobile - Mar 1, 2016User's project crashes on the Lenovo S939 when an external window pops up (such as a timer) ...
Crash in AWorldDataLayers::InitializeDataLayerRuntimeStates() when quickly unloading then loading a sub-world partition
UE - World Creation - Worldbuilding Tools - Data Layers - Mar 6, 2025From licensee: Since we integrated 5.5, we are experiencing a crash in AWorldDataLayers::InitializeDataLayerRuntimeStates() on this line check(ActiveDataLayerNames.IsEmpty() && LoadedDataLayerN ...
D3D12RHI crash when interacting with UI using dx12 with raytracing enabled
UE - Graphics Features - Feb 12, 2020Enabling raytracing and DirectX12 results in D3D12RHI crash when interacting with the UI or console inside of the editor. User is using the latest drivers and has adequate hardware to run raytraci ...
Crash when starting PIE on a World Partition level with a Niagara Component inside nested Child Actor Components
UE - Niagara - Jun 25, 2024Consider an actor containing a Niagara Particle System Component, which is instantiated from another actor's Child Actor Component. When initializing PIE on a World Partition level containing this s ...
Crash occurs when building lighting on Mac
UE - Graphics Features - Jan 4, 2017The Unreal Editor will crash whenever you try and build lighting. Crash does not occur in: 4.14.2 - 3241561 ...
Struct crashes when switching variable types while the default values are being shown
Tools - Jan 11, 2016If the user switches between two variable types in a struct while the default values are being shown then the editor will crash ...