Unreal Engine Issues
Unreal Engine Issues
Crash when adding multiple collision types to a mesh
Tools - Jan 27, 2017Adding various collision types to a single mesh will cause it to hard crash the editor. No Crash Reporter window will open. Note that this happens with the user's mesh, but I was not able to repro ...
Hang when using Debug config with Launch On to Android
UE - Platform - Mobile - Mar 18, 2019Final bits of logging show:D/UE4 : [2019.03.18-16.36.59:236][ 0]LogInit: Display: Starting Game. D/UE4 : [2019.03.18-16.36.59:236][ 0]LogNet: Browse: /Game/FirstPersonCPP/Maps/FirstPerson ...
Editor FPS has significant drop when moving a BSP brush in level with multiple BSPs
UE - AI - Navigation - Jan 8, 2025Editor performance plummets when moving BSP brushes in a level with several other BSP brushes present. Navmesh regeneration is the main cause as the full bounds for all BSP are used to determine whi ...
Retargeting Retain Additive Flags option keep reference to the original sequence in additive settings
UE - Anim - Rigging - Retargeting - Sep 24, 2024Asset Details > Additive Settings when retargeting are copied over but reference to the animation sequence that was used in the original is kept. Batch retargeting process correctly identifies that ...
Crash when applying force on event tick to DM
UE - Simulation - Physics - Destruction - Jun 19, 2015When using a DM and applying force via blueprints with event tick will cause a crash. Workaround: Using a timer instead will not cause any crash even with very low values. Crashreporter: [Link Re ...
Blueprints converted to static mesh with negative scales for a component will invert the faces
Tools - Dec 19, 2016Negative scaled static mesh components in a blueprint will invert their faces when converted to a static mesh. Note that this does not happen in the following situations: If the BP is scaled negat ...
Crashes when playing Slomo on NiagaraSystem with Solo and DesiredAge.
UE - Niagara - Mar 23, 2023When Slomo 2 is used to speed up the process, TicksToProcess is greater than 1, which means that ManualTick is called several times during one loop. When playback is completed by a ManualTick in t ...
No Dynamic Shadows From Stationary Lights in Forward Shading Without Building Lighting
UE - Graphics Features - Apr 24, 2018I've observed this issue in 4.18.3 and 4.19.1. Per Licensee: So we've spotted an issue that I wanted to put on your radar with dynamic shadowed stationary lights + r.ForwardShading=1 What we're s ...
Pasting an element into a Widget Blueprint hierarchy causes a crash
UE - Editor - UI Systems - Sep 23, 2021Pasting an element into a Widget Blueprint after removing the canvas panel will result in a crash. This has been tested with the border and button elements. This issue is occurring in //UE5/Releas ...
Niagara Oscilloscope hangs indefinitely in cooked build
UE - Audio - Dec 9, 2020Cooked games will hang on startup when using the Oscilloscope data interface due to an indefinite wait in FNiagaraSubmixListener::UnregisterFromSubmix When setting GCVarEnableAudioCommandLogging t ...