Unreal Engine Issues
Unreal Engine Issues
When changing the size of detail panel for animation state in Animation Blueprint diff tool, GetSelectedProfileName will occur crash
OLD - Anim - Jun 24, 2020When trying to display BlendProfile property in Animation Blueprint diff tool, it will occur crash, because EditableSkeleton is null in SBlendProfilePicker::GetSelectedProfileName(). So, a followin ...
Overriding Component class does not work properly in grandchild class BP
UE - Framework - Blueprint - Feb 22, 2023If you set ComponentClass override in child class BP and grandchild class BP respectively, it is ignored in grandchild class. This issue is probably related to [Link Removed] ...
Add Substrate Material Support to Lumen Performance Overview
UE - Rendering - Features - Shading Models - Feb 10, 2025There is a discrepancy when inspecting Substrate materials in the Lumen Performance Overview. Compared to viewing non-Substrate materials the overview show all surfaces in red indicating that Lumen ...
Disabled Skeletal Mesh Sections cause Shadow Ray Tracing Flicker
UE - Rendering - Graphics Features - Ray Tracing - Dec 12, 2025If a skeletal mesh has a section disabled the ray traced shadow will flicker when the camera or itself moves. Previously in 5.6.0 no raytraced shadow would appear if a section was disabled. This wa ...
Cannot move instances of a hierarchical static mesh component in the blueprint editor viewport
UE - Gameplay - Components - Apr 12, 2016Can move individual mesh instances of a regular instanced mesh component in the blueprint editor, but not hierarchical ones. Originally reported as a pull request in [Link Removed], but we rejected ...
Landscape components render black
UE - LD & Modeling - Terrain - Landscape - Dec 1, 2016Workaround:Open the Landscape Material and click SaveReload the level Landscape components render black upon first-time compile. Observed in QA-Landscape - several chunks of the Landscape were bla ...
Variables not labeled as Editable will not update with branch
UE - Gameplay - Blueprint - May 9, 2017Variables not labeled as Editable will not update with a branch node inside of the construction script. Variables behave as expected when not connected to the branch node. This issue was tested with ...
Engine crash from opening level bounds blueprint after project reopens
UE - Gameplay - Blueprint - Jun 2, 2017There is a crash that is occurring when a blueprint with the parent of "Level Bounds". The crash occurs when the project is closed and reopened. Opening the blueprint immediately after it was create ...
Accessed None for Sequence Actor references in project upgraded to 4.17
UE - Anim - Sequencer - Jul 14, 2017In a project upgraded from 4.16 to 4.17, the level sequence doesn't play on first PIE and returns Accessed None errors. Next time you PIE, it plays fine. This now happens every time you re-open th ...
Crash occurs on Mac when using the Command-S keyboard shortcut to save a Blueprint if the Mac input language is set to Japanese Romaji
UE - Platform - Apple - Aug 10, 2017The Editor will crash when using the keyboard Command-S shortcut to save a Blueprint after adding a node if the Mac is set to use Japanese Romaji input. The crash actually seems to occur as soon as ...