Unreal Engine Issues
Unreal Engine Issues
Calling UBlueprintMapLibrary::GenericMap_Find with a non-existent key causes a memory leak
UE - Framework - Blueprint - Apr 15, 2025When Calling UBlueprintMapLibrary::GenericMap_Find with a non-existent key, the function construct the default structure in-place on the given pointer without destroying the object. This behavior ca ...
Distributed HLOD builds always fail for projects not under the Engine Root
UE - World Creation - Worldbuilding Tools - HLOD - Dec 4, 2024In BuildProject.txt, to make relative path to the project outside the engine root, all paths contains “..” after action command directory. D:/dev/UnrealEngine-5.5.0//HLODTemp/f09bf0f5/HLODBuilder0 ...
[AI] Debug Render Scene Proxy hits ensure for registering a delegate twice during level streaming.
UE - AI - Debugging - Aug 31, 2022Description from licensee: We're seeing an ensure get tripped up in FDebugRenderSceneProxy that says "DrawDelegate is already Registered!". Debugging the issue, we have confirmed that the DrawDeleg ...
Launching Android project to device results in Assertion Failed: AsyncLoading.cpp, Line 3710
UE - Platform - Mobile - Aug 31, 2020After updating to 4.25.1 from 4.25 Packaged Android game crashes constantly with objects added to the map 4.25 Packaged game did not crash (editor did a lot but glad thats fixed in 4.25.1) Empty map ...
[CrashReport] Assertion failed: !PinRef->bWasTrashed | UEdGraphPin::SerializePin()
UE - Gameplay - Blueprint - Aug 29, 2017This is a common and longstanding crash that has occurred since at least 4.15 and affected nearly 500 users. The CrashGroup was previously linked to [Link Removed], but that had specific repro step ...
Shader Compiler Crashes in Remote Build
UE - Graphics Features - Nov 11, 2019Output log when crashing UATHelper: Packaging (iOS): LogCook: Display: Max memory allowance for cook 16384mb min free memory 0mb UATHelper: Packaging (iOS): LogCook: Display: Mobile HDR setting 1 ...
[CrashReport] UE4Editor_Renderer!FUniformMeshConverter::Convert()
UE - Graphics Features - Aug 3, 2017This is a regular crash that has occurred through 4.16 and into the 4.17 previews. The callstack is similar to [Link Removed] (invalid), although the error message is different. User Description ...
Crash when resizing window using Quad Stereo Buffer
UE - Virtual Production - nDisplay - Oct 2, 2019We noticed crashes in our application when we attempted to resize a window or switch to full-screen mode. Hence, resizing windows and switching to full screen will result in a crash on Unreal Engine ...
UMG Editor Will Compile Incorrect Node And Crash When Called During Runtime
UE - Editor - UI Systems - Dec 26, 2019The UMG editor will compile as if the blueprints is valid if you make "Get Text" node from a TextBlock variable, delete it and create a EditableText variable with the same name. When running a scene ...
Player Character does not collide with landscape
UE - LD & Modeling - Terrain - Landscape - Mar 8, 2015UPDATE: 3/9/2015 Additional Information: User on thread https://answers.unrealengine.com/questions/186928/landscape-collison-issues-recreatelandscapecollisi.html reported workaround did not fix e ...