Unreal Engine Issues
Unreal Engine Issues
Editor crashes when opening a project that includes a plugin with more than two custom Volume classes
Tools - Jun 7, 2017Adding more than two custom Volume classes to a plugin results in any project that includes that plugin crashing when opening it in the Editor. There does not appear to be a problem with adding thre ...
EditConditionHides on Member of struct, that is in Array, causes Assertion Failed when clearing Array in Data Table
UE - Editor - Nov 23, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...
[AI] UE_MT_SCOPED_READ_ACCESS(NavElementAccessDetector) Fails in editor on fresh sync
UE - AI - Navigation - Jan 27, 2025Licensees have reported failed multi-thread access code for NavElementAccessDetector in complex levels that have not finished compilation of their static meshes. The eventual failed check is inside ...
Connecting GetSequenceBinding node to LevelSequence including Spawnable Actor etc. will result in error
UE - Gameplay - Blueprint Editor - Feb 22, 2018[Link Removed] ・Open attached project ・Open NewMap ・Confirm that an error appears on the console ・When creating a Windows (64-Bit) package in this state, the same error occurs ...
FTextLocalizationManager::UpdateFromLocalizationResource is discarding data
UE - Editor - UI Systems - Localization - Mar 1, 2016FTextLocalizationManager::UpdateFromLocalizationResource is loading LocRes data into a temporary, rather than loading it into a reference to an entry in LocalizationEntryTrackers. ...
[CrashReport] UE4Editor-MetalRHI!FMetalCommandBufferDebugHelpers::TrackResource(id<MTLCommandBuffer>, objc_object*) [MetalCommandBuffer.cpp:147]
UE - Rendering Architecture - RHI - Dec 10, 2019Generated from CrashReporter ...
Gameplay Tag Query using NoTagMatch expression does not construct DebugString properly
UE - Gameplay - Nov 1, 2018The code in GameplayTagContainer.cpp has code for generating debug strings representing tag queries. Compare the code in EmitTokens in all other queries to the code in UEditableGameplayTagQueryExpre ...
virtual texture lightmap crash due to pixel format r8Unorm_srgb in MacEditor
UE - Rendering Architecture - RHI - Mar 4, 2021Currently r8Unorm_srgb is required by virtual texture lightmap, and the Metal RHI simply forbids r8Unorm_srgb on Mac platform. Since the latest MacOS 11.0+ have the support of r8Unorm_srgb, we shoul ...
BBKeySelector does not handle multiple Object types
UE - AI - May 30, 2016It's not possible to configure a BB key selector to accept multiple different types of UObjects. The issue comes from using strings to identify declared key type filters, which doesn't work well fo ...
Insufficient stack size in async MediaCapture thread
UE - Virtual Production - IO - Media - Aug 21, 2023Reported from our partner Babooblab: The UDN Customer does not give any detailed information to reproduce the issue. However they specify the kind of issue (stack overwflow) and give a possible sol ...