Unreal Engine Issues
Unreal Engine Issues
Crash when exporting static mesh actor to FBX (Array index out of bounds)
UE - Editor - Content Pipeline - FBX - Apr 25, 2025I set the Forced LOD Model on the mesh component > 1, then tried to export, this is what causes the crash. Here is my suggested fix, we just don't use Git or I'd do a PR: In the else() branch of FF ...
Final Gather Quality Post Process setting causes severe rendering issues in the Stack-O-Bot project
UE - Graphics Features - Lumen - Feb 24, 2022When opening the Stack-O-Bot project in 5.0 Preview 1, the project has a rendering issue where bright shimmering lights appear all around the screen. I discovered that this is due to the PostProcess ...
Applying downscale causes textures to display unexpectedly on widgets
UE - Editor - UI Systems - Slate - Sep 22, 2025When applying downScale 2.0 to UI textures to reduce resolution, unintended display issues occur on widgets, such as: ・The border of box-shaped Widgets with DrawAs set to “Box” becomes thinner ・Dot ...
ImportAssets commandlet failing to create assets in project
UE - Editor - Content Pipeline - Import and Export - Mar 14, 2017There are no errors or warnings in the console output or logs that suggest anything went wrong. Also attempted to import a .PNG with no luck. Exact command used, use of <user> where appropriate:UE4 ...
ShooterGame: Unable to Find Hosted Match over Wi-Fi on Android
UE - Networking - Jul 27, 2018Android devices cannot find a hosted match over Wi-Fi (IPv4) from another Android device despite being connected to the same Wi-Fi network with matching subnets. The host prints the following messa ...
Crash when breaking Level Instance within Data Layer Asset
UE - World Creation - Worldbuilding Tools - World Partition - Feb 2, 2023A crash occurs when breaking a level instance contained in a data layer. This does not occur in 5.0.3, however the behaviors of Data Layers are different in 5.1 where the Data Layer asset is added ...
[CrashReport] Access Violation - UModelComponent::GetPhysicsTriMeshData() [modelcomponent.cpp:673]
UE - Simulation - Physics - Oct 2, 2017This is a trending crash coming out of the 4.18 Previews. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to [Link Removed], which was ju ...
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 ...
Changes to InputMappingContext made during game play revert to previous state after restarting engine
UE - Gameplay - Input - Nov 21, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. The following Blueprint nodes are affected by the same issue:Map KeyUnmap KeyAdd Playe ...
Renaming a variable on a Blueprint will reset that variable's value on any Child BPs
UE - Framework - Blueprint - Mar 25, 2023If a variable is renamed on a blueprint, then any child blueprints will lose their default values for that variable and reset to the parent's default value. This resetting only happens with the Chi ...