Final Gather Quality Post Process setting causes severe rendering issues in the Stack-O-Bot project

UE - Graphics Features - Lumen - Feb 24, 2022

When opening the Stack-O-Bot project in 5.0 Preview 1, the project has a rendering issue where bright shimmering lights appear all around the screen. I discovered that this is due to the PostProcess ...

Crash: Changing Material Property Overrides of Material Instance

UE - Graphics Features - Dec 14, 2016

When a material has a static bool parameter AND this is overridden in a material instance, Trying to change Blend Mode or Shading Model under the Material Property Overrides crashes the editor. Thi ...

Exporting Alembic Skeletal mesh from UE4 to FBX causes a crash

Exporting an alembic skeletal mesh that has been imported and then exporting it to FBX using the asset actions options will cause a crash. Tested with: Crash - 4.13.0 Binary CL-3106830 Crash - 4.1 ...

[CrashReport] Access Violation - UModelComponent::GetPhysicsTriMeshData() [modelcomponent.cpp:673]

UE - Simulation - Physics - Oct 2, 2017

This is a trending crash coming out of the 4.18 Previews. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to [Link Removed], which was ju ...

[CrashReport] UE4Editor_MovieSceneCapture!FormatForEDL() [moviescenecapturehelpers.cpp:216]

UE - Anim - Sequencer - Jul 6, 2017

This is a common crash affecting users in 4.16. User Descriptionsrender a sequence to a video file or image sequence Source Context 205 void FormatForEDL(FString& OutputString, const FStri ...

Physics object resting on movable platforms have erratic physics behavior in 4.14

UE - Simulation - Physics - Dec 14, 2016

Physics object resting on movable platforms have erratic physics behavior in 4.14. This is a regression from 4.13.2-3172292 User Description: When placing more than 10 or 20 blocks on a moving pl ...

Crash Occurs When Clicking Off of Color Picker in Data Table

Tools - Jun 29, 2016

When using an FLinearColor variable in a data table and editing it using the color picker, clicking anywhere off of the color picker window will cause the editor to crash. Error Message: Assertio ...

Crash when rendering cinematic in a Separate Process without "-NoLoadingScreen" cmd argument

UE - Anim - Sequencer - Jul 5, 2016

Crash when rendering cinematic in a Separate Process without "-NoLoadingScreen" cmd argument. Occurs in 4.12 and 4.13 in both Matinee and Sequencer Error message: Assertion failed: SizeX > 0 && S ...

[CrashReport] UE4Editor-ApplicationCore.dylib!FMacWindow::ApplySizeAndModeChanges()

UE - Platform - Apple - Oct 27, 2017

This is an early trending Mac crash in 4.18. Users have not provided any descriptions of their actions when the crash occurred. Callstack from LogLogAssetRegistry: Asset discovery search completed ...

Assertion failed: GEditor->GetSelectedActorCount() == 1 in FLevelEditorActionCallbacks::Paste_CanExecute

Tools - May 3, 2017

This is a high frequency crash occurring for our users. It appears to be the same crash reported in [Link Removed], however that was fixed in 4.15.0, and the specific repro steps are verified to no ...