Unreal Engine Issues
Unreal Engine Issues
Project no longer builds when .cc file is included in the project
UE - Foundation - Cpp Tools - Jan 15, 2019Including files with a .cc extension instead of .cpp in a code project used to build fine in Visual Studio. This is no longer the case in 4.21.2. The error message that results indicates that only C ...
Simulating physics overrides the ability to move Skeletal Mesh Actors in Editor after moving a child component
UE - Simulation - Physics - Jun 18, 2019Found in 4.22 CL#6574378 Reproduced in 4.21 CL#4753647, 4.24 Main CL#7062442 May be similar to [Link Removed], which was reported fixed in 4.13 The following warning is spammed when trying to mov ...
UMG Widgets containing child widgets that have bound animations fail to save
UE - Editor - UI Systems - Jan 10, 2020Adding a child widget that contains a bound animation to a separate widget blueprint results in failure to save. Working in 4.22.3 Tested in: 4.22.3 CL#7053642, 4.24.1 CL#10757647, 4.25 CL#108892 ...
[AI] Navmesh tiles on different layers get removed while streaming out in WP Dynamic Modifiers Only navmesh
UE - AI - Navigation - Feb 6, 2025Streaming out the navmesh and streaming the area back into the world before the GC runs causes the navmesh streamed back into the world to only have navmesh tiles on a layer with tiles that would b ...
Rect light LTC textures fail to load when cooking with bSharedLinearTextureEncoding enabled
UE - Texture - Apr 2, 2025When running a build with bSharedLinearTextureEncoding enabled, View.GGXLTCMatTexture and View.GGXLTCAmpTexture are pointing at the black texture fallback, which affects correctness of rect lighting ...
Translucent Surface Material and Additive Particles not rendering on Metal in Shipping/Distribution
UE - Platform - Mobile - Oct 22, 2015Certain Translucent Materials with Surface Lighting Models and Additive Material based Particle Systems will not render in Shipping/Distribution configuration using Metal Rendering on an iPhone 6*. ...
[MAC][OPENGL][METAL]: Investigate why planar reflections on translucent surfaces may not be working
Tools - Jun 29, 2015See Comments. User reported planar reflections aren't being applied to translucent materials on Mac OpenGL, which may also affect Linux OpenGL and Mac Metal. Need to investigate what this feature r ...
No clear messaging that locomotion is based on Map for VR Template
Docs - Samples - Jul 29, 2016When a user first creates a VR template, if they're without motion controllers, they may wonder why it's "not working" (can't move, etc.) We should more directly message out that this is based on t ...
Compile failure adding C++ Vehicle or VehicleAdvanced pack to a project
UE - Gameplay - Jan 11, 2017Adding the C++ Vehicle feature pack to a project fails to compile with the following error:CompilerResultsLog: Info Error: Couldn't find parent type for 'TP_VehiclePawn' named 'AWheeledVehicle' in c ...
UMG Visibility binding resets to default after closing and reopening project first time
UE - Editor - UI Systems - Aug 31, 2017UMG Visibility binding resets to default after closing and reopening project first time. "Get Visibility" on Button click boolean toggle for widget blue print "False" return node value gets automa ...