Unreal Engine Issues
Unreal Engine Issues
Crash using Import Commandlet on FBX that gets "Bones are too small" error when imported manually
UE - Editor - Content Pipeline - Import and Export - Feb 23, 2017Crash using Import Commandlet on FBX that gets "Bones are too small" error when imported manually Error from manual import: Warning The bone size is too small to create Physics Asset 'ButterflyVa ...
[CrashReport] UE4Editor_CoreUObject!UPackage::Save() [savepackage.cpp:4597]
UE - Gameplay - Blueprint Compiler - Jul 14, 2017This is a common crash affecting users in 4.16. Users have not provided additional information. Source Context// Set the parent index, ifthis export represents a UStruct-derived object 4589 ...
NavLink component does not account for the cost of the path set by AreaClass
UE - AI - Sep 6, 2018In the test case, the NavLink component has a navigation cost of 1000000000. When the AI navigates to the NavLink the printed cost is only 2677. It is believed that the AreaClass isn't being taken i ...
Dithered LOD Transition does not work on some mobile devices
UE - Platform - Mobile - Aug 27, 2019I tested with some mobile devices and Dithered LOD Transition did not work on Huawei P20 Pro. This problem does not occur with Snapdragon. This problem does not occur with Snapdragon like Pixel 3. ...
UProceduralMeshComponent::UpdateMeshSection does not call UProceduralMeshComponent::UpdateCollision
UE - Simulation - Physics - Apr 20, 2020Updating a procedural mesh results in an incomplete collision update. Collision bounds appear to get updated properly, but collision data is not updated, despite a navigation rebuild being triggered ...
ARCore: Camera does not function in ARDebugCheck app
UE - Platform - XR - Mar 14, 2022The camera is not turning on when using the ARDebugCheck app. Some details:The app does not ask for Camera permission and defaults to denied.ARDebugCheck is a Black screen after selecting "Start AR" ...
Chaining AutomationTool Commands leads to an endless loop
UE - Foundation - Cpp Tools - Automation Tool - Nov 23, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...
Expose on Spawn option removed from BP Editor for User Created Structs after Migrating
UE - Gameplay - Blueprint Editor - Dec 14, 2022Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. Only seems to occur with User Defined Structs. Testing with other variable types, but all ...
FJsonObjectConverter::ExportCallback_WriteISO8601Dates allows for writing FDateTime that does not have ticks
UE - CoreTech - Mar 12, 2025Context: `FJsonObjectConverter` is a built-in UE class that makes it easy to convert JSON objects to and from UStructs, including `FDateTime`, which implements a date and time. Problem: An uniniti ...
[CrashReport] UnrealEditor-AppFramework!SColorPicker::HandleParentWindowClosed(TSharedRef<SWindow,1> const &) [SColorPicker.cpp:1530]
UE - Editor - UI Systems - Sep 26, 2022Generated from CrashReporter This is NOT a regression. Tested in //UE4/Release-4.27 at CL18319896 Tested in //UE5/Main at CL 22175708 - Issue did not occur ...