Unreal Engine Issues
Unreal Engine Issues
Vertex Interpolators broken in landscape materials
UE - Graphics Tools - Terrain - Landscape - Aug 17, 2021D:/Unreal/UE4_Release-4.27/Engine/Shaders/Private/LandscapeVertexFactory.ush(788,3-59): Shader FDebugViewModeVS, Permutation 0, VF FLandscapeVertexFactory[Image Removed]:/Unreal/UE4_Release-4.27/Eng ...
Stale VSM pages after HLOD transition
UE - Rendering - Features - Shadows - May 23, 2024Virtual Shadow Maps do not invalidate pages when HLODs replace meshes. This can lead to inconsistencies between the geometry and the shadows, which can cause artifacts as pages are invalidated. ...
Resavepackages commandlet strips level package thumbnails
UE - Editor - May 12, 2026When loading thumbnails in FLinkerLoad::SerializeThumbnails, the level asset has two thumbnails. The first one has a size of 0, which causes the loading process to abort early. Since the actual thum ...
first struct variable not shown by Intelisense
UE - Foundation - Core - Feb 18, 2015When invoking a custom struct, the first listed variable will not appear in the Intelisense window. ...
Components spawned at runtime do not take Radial Damage if simulating physics
UE - Gameplay - Mar 16, 2015Components spawned at runtime do not take Radial Damage if simulating physics. ...
[CrashReport] Assertion failed: NewWorld | UE4Editor_Engine!UEngine::LoadMap()
UE - Gameplay - Nov 2, 2017This is a common and longstanding crash that has occurred since at least 4.15. Originally this was being tracked under [Link Removed] due to sharing the same callstack, but that had specific repro ...
MediaTexture do not show video when playing a movie using Media Player in some Android devices.
Media Framework - Feb 13, 2018Movie Player do not seems to play movie in some android devices. [Link Removed] You can simply run the attached project in android devices to see the movie is played as expected. ...
Using the Editor in Fullscreen mode on Linux causes it to freeze and occasionally lock up the computer
UE - Platform - Linux - May 29, 2019Using the Editor in Fullscreen mode on Linux causes it to freeze and occasionally lock up the computer. This freeze causes the various symptoms described in the Results field. In 4.21.2 (CL-4753647) ...
Replace with child on subtree of the NamedSlot is broken after reloading a widget.
UE - Editor - UI Systems - Apr 5, 2021"Replace with child" does not work well with the NamedSlot widget after reloading the widget blueprint in Contents Browser. ...
Solidworks exporter installation does not proceed
UE - Editor - Open File Formats - Datasmith - Exporters - Dec 9, 20213 users reported the same issue. DEBUG: Error 2203: Database: 1031. Cannot open database file. System error -2147287038 or DEBUG: Error 2203: Database: 1036. Cannot open database file. System err ...