Unreal Engine Issues
Unreal Engine Issues
SKP import - Materials missing and incorrect when using Collapse all
TM - Interoperability - Sep 30, 2026Reported in SF [Link Removed] When importing a .skp model into Twinmotion 2026.2 Preview as Geoemtry, using the Collapse all mode will cause materials to be displayed incorrectly, replacing most ma ...
Gameplay Tags with the string "None" as any of its hierarchical node identifiers behave incorrectly (because of an incomplete generated FGameplayTagContainer::ParentTags array)
UE - Gameplay - Nov 19, 2024Currently, using the string "None" as a hierarchical node identifier inside a Gameplay Tag (for example "A.B.C.None.D.E.F") is not disallowed by the engine, but results in some incorrect behaviors. ...
Crash on iOS loading into a scene with Media Framework assets
Media Framework - Sep 30, 2016Following launching a packaged Media Framework project, the application crashes. Different behavior is observed between iOS versions. When tested in 7.1.2, the video played in the scene for a few s ...
Widget Component Does Not Cast Shadows From Certain Lights
UE - Editor - UI Systems - Oct 19, 2016The widget component acts differently under different lighting types. For example it will cast a shadow if being lit by a directional light but won't otherwise. It also seems point lights affect t ...
Hang and log spam when making changes to a landscape material with the landscape editor open
UE - LD & Modeling - Terrain - Landscape - Jul 25, 2016Editor hangs if changes are made to the material which is currently assigned to a landscape while the landscape editor is open. Also spams "LogMaterial: 0.03 seconds spent updating 1 materials, 1 i ...
[CrashReport] UE4Editor_TextureFormatDXT!__delayLoadHelper2() [delayhlp.cpp:323]
UE - Graphics Features - Nov 3, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Unknown exception - code c06d007e (first/second chance not available) Source ...
[CrashReport] UE4Editor-Core.dylib!FThreadStats::FThreadStats()
UE - Graphics Features - Nov 17, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: SEGV_MAPERR at 0x0 Source Context:N/A Most recent user affected CL: 3195953 ...
Editor crashes on launch after hot reload with multiple modules
Tools - Feb 16, 2017The editor will crash on open after a hot reload if there are multiple modules in the project. Regression: No - behavior also occurs on 4.14.3 (CL 3249277) Workaround: Compiling with the editor clo ...
Dbuffer Normals Incorrect In Forward Rendering
UE - Graphics Features - Apr 17, 2017After enabling forward shading materials with their decal response set to "normal" have incorrect shading. In the example project there are many pointlights and their specular highlight doesn't disp ...
Drag in event graph does not work after touch event with breakpoint
UE - Editor - UI Systems - Slate - May 3, 2017Dragging in event graph does not work after touch event with a breakpoint. This issue persists after the PIE has stopped as well. But the issue is resolved when the project is reopened. Regression: ...