Unreal Engine Issues
Unreal Engine Issues
Python crash the engine at exit.
UE - Editor - Workflow Systems - Oct 25, 2022A UDN reported various crashes at exit in the embedded Python library. I was able to repro the issue in Release-5.1 and trace it back at the point where python runs its garbage collection in Py_Fina ...
Landscape LOD behaviours is not working as expected (Its Calculation is not based on Sections anymore)
UE - Graphics Tools - Terrain - Landscape - Apr 10, 2024"Components can optionally be divided into either 1 or 4 (2x2) subsections to increase the resolution of the Landscape. These subsections are the base unit of Landscape LOD calculation." From Doc ...
New Relevant Anim Time Transitions not working initially
OLD - Anim - Sep 16, 2015Using the new "Get Relevant Anim Time Remaining" Node, transitions don't read the relevant anim until the second time passing through the state. *See attached image. In contrast, using the old "Tim ...
Crash on play if a BP uses a ClearInstances node followed by an AddInstance node
UE - Graphics Features - Jul 21, 2017Crash on play if a BP manipulates a InstancedStaticMeshComponent by using a ClearInstances node followed by an AddInstance node. This is a blocker for the licensee. This is a regression: Working ...
SubCategory of UFUNCTION does NOT work properly if using CallInEditor
UE - Gameplay - Blueprint Editor - Sep 20, 2022If you use both Category hierarchy and CallInEditor in UFUNCTION, it will result in an unintended sequence as shown below. [Image Removed] And, the following code can solve this issue void FDetai ...
Cyrillic user name with Windows will prevent APEX cloth apb files from importing
OLD - Anim - Jan 29, 2015When the user name on Windows is set to cyrillic importing APEX cloth assets will fail. I'm not sure what other systems this may also affect, but adding a cloth apb asset to a skeletal mesh will cau ...
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. ...
WildCard Inputs/Outputs Propogate Incorrectly in Macros
UE - Gameplay - Dec 13, 2019When a macro takes in a two Wildcard inputs and two Wildcard outputs connecting a variable to one assigns the value of all the outputs even if they don't connect (check attached image). You can see ...
Attached Project Crashes Intermittently On FTickTaskLevel::ScheduleTickFunctionCooldowns()
UE - Gameplay - Apr 20, 2016The user's project is crashing during PIE on FTickTaskLevel::ScheduleTickFunctionCooldowns(). Source Context: 798 else 799 { 800 CumulativeCooldown += ComparisonTickFuncti ...
Compiling Unreal Lightmass Fails When Using Visual Studio 2015 Update 2
UE - Foundation - Core - Apr 4, 2016When attempting to compile Unreal Lightmass in the 4.11 source build, a compiler error pops up when using Visual Studio 2015 Update 2. Error Message: "d:\unrealengine-release\engine\source\program ...