Unreal Engine Issues
Unreal Engine Issues
Ensure condition failed when destroying a Level Sequence Actor on tick
UE - Anim - Sequencer - Oct 18, 2019In Tick processing of LevelSequencActors of World Tick, If you destroy an actor with an actor's ticks, delete it immediately from the LevelSequencActor array. I think that the problem occurred becau ...
InPartialBunch can cause crash in FNetBitReader::CountMemory during memreport
UE - Networking - Nov 9, 2022An actor channel's InPartialBunch won't be deleted and cleared until a new partial bunch is received. This can result in a situation where memreport counts the memory for an old InPartialBunch and i ...
Forward Rendering causes Volumetric Material to not render against background
UE - Graphics Features - Nov 15, 2022Regression: Tested in UE5/Release-5.0, and the issue is reproduceable. This issue appears to occur when the SkySphere is deleted from the level, as leaving the SkySphere in the level causes the Vol ...
Materials using using 2D render target textures do not show up on launch in UMG
UE - Editor - UI Systems - Jan 26, 2015I have an image in a UMG that is supposed to show what is seen but a Scene Capture 2D camera that is set up in the level. This works fine in the editor (PIE), however when using the Launch button th ...
Collapsing a local variable Get/Set node into a new function or macro will result in a BP compile error.
UE - Gameplay - Blueprint - Apr 21, 2017We currently overlook local variables being collapsed into new function and/or macro graphs, where they are no longer in scope. Current workaround: Manually delete local variable "get" and "set" no ...
WMR native plugin trigger axis not working
UE - Platform - XR - Nov 19, 2018We are testing the new Windows Mixed Reality native support and have found that the trigger mapping to a button is working, but the trigger mapping to an axis is not, i.e. the event MotionController ...
UAssetDefinition doesn't allow overriding actions from base classes
UE - Editor - Jun 24, 2024In the new implementation UAssetDefinition to define the actions for asset we found that it isn't possible to delete or hide actions from parent classes due to the ToolMenu system works with delegat ...
Steam Sockets cannot create listen socket during non-seamless server travel
UE - Online - Jan 24, 2025This seems to occur because the original listen socket is still around when the instance tries to create the new one, even though it has been marked for deletion. The issue does not occur when FStea ...
Mouse functionality breaks on Linux when game is full screen on multi-monitor setup
UE - Platform - Linux - Mar 1, 2016When the game window is maximized on any monitor other than the left most monitor, the mouse will not interact with the game window. ...
Sequencer: SourceData[x].SourceIndex may be larger than the size of the Sections array, causing a crash
UE - Anim - Sequencer - Mar 29, 2017A licensee has encountered a crash when loading Sequencer Assets that occurs in BlendSegment during a sort lambda. It's possible to end up in a situation where the SourceIndex being sorted is larger ...