Unreal Engine Issues
Unreal Engine Issues
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 ...
Cloth environment collisions with APEX clothing is not thread safe.
UE - Simulation - Physics - Character - Jan 17, 2017This looks like a thread safety bug that's been in the clothing system for a very long time. Essentially a skeletal mesh component does a transform update and attempts to update the collisions of a ...
Widget Blueprint breakpoints hit during a Tick event do not engage the debugger.
UE - Editor - UI Systems - Jun 13, 2024The user comment on the Salesforce issue " This is a regression from the behaviour in 5.3.X, and I've reproduced it in 5.4.0, 5.4.1, and 5.4.2. The specific issue/change that caused this regression ...
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 ...
POM material triggers Video Driver Crash
UE - Graphics Features - Apr 26, 2016When a POM decal material is applied to a decal actor in the scene the video driver will crash. This worked prior to 4.11.0 release. Only when the material is assigned to a decal actor will the vide ...
An Actor with Run Construction Script in Sequencer set to true doesn't render out correctly with Movie Scene Capture or Move Render Queue
UE - Anim - Sequencer - Mar 31, 2022An Actor with Run Construction Script in Sequencer set to true doesn't render out correctly with Movie Scene Capture or Move Render Queue. While previewing the Sequencer the actor moves as expected. ...
Enable HDR Display Output on Game User Settings Crash
UE - Graphics Features - Jun 14, 2018Crash when attempting to enable HDR via UserSettings This crash will also occur when project is fullscreen. User's Environment: "I have an Nvidia GTX 1080 Ti and have two monitors attached: 1. ...
Folder disappears upon cancelling renaming by pressing ESC key twice
UE - Editor - Content Pipeline - Content Browser - Sep 27, 2017Working: 4.16 Broken: 4.17.1, 4.17.2, 4.18 When cancelling the renaming of any folder or sub-folder in the Content Browser by pressing ESC key twice, folder or sub-folder will not be visible in Co ...
Niagara - When editing a Niagara Function or Module Script, the "Apply" button on the toolbar never gets disabled if "expose as pin" is checked on any static switch node.
UE - Niagara - Apr 7, 2025Consider a Niagara Function or Module Script containing a Static Switch node. If the "Expose as Pin" option is enabled for its selector variable, the "Apply" button on the graph editor's toolbar wil ...