Unreal Engine Issues
Unreal Engine Issues
Editor FPS has significant drop when moving a BSP brush in level with multiple BSPs
UE - AI - Navigation - Jan 8, 2025Editor performance plummets when moving BSP brushes in a level with several other BSP brushes present. Navmesh regeneration is the main cause as the full bounds for all BSP are used to determine whi ...
Two-sided geometry cannot be enabled for re-imported models when converting from previous versions
TM - Interoperability - Jan 28, 2025When converting files from previous versions of Twinmotion to Twinmotion 2025.1, re-importing any existing imported geometry will cause the geometry to be re-imported with two-sided geometry disable ...
Resource Collector does not compress files when the Compress files option is selected.
TM - Core - Jan 20, 2025The Resource Collector does not compress the project and maps even if the option was checked. ...
Crash when two textures reference eachother as composite textures
UE - Texture - May 28, 2025When (unintentionally) trying to set one texture as the composite texture of another, which itself is the composite texture of the first, a stack overflow occurs leading to a crash: in UTexture::Pos ...
Rotated RetainerWidget does not account for rotation during hit testing
UE - Editor - UI Systems - Jan 21, 2026Hit testing for widgets contained within a RetainerWidget does not correctly account for rotation applied via render transforms . While the content renders with the expected rotation, hover and clic ...
Rotation gizmo affects post processing and reflections in the scene
Tools - Jul 6, 2015This has been around since public launch. The rotation widgets emissive material will cause trouble with the post processing and reflections in the scene. Especially troublesome if you with bloom an ...
Crash when applying force on event tick to DM
UE - Simulation - Physics - Destruction - Jun 19, 2015When using a DM and applying force via blueprints with event tick will cause a crash. Workaround: Using a timer instead will not cause any crash even with very low values. Crashreporter: [Link Re ...
Regression of CanJump Function not being accessible in blueprints in 4.8
UE - Gameplay - Jun 26, 2015When trying to override the CanJump function of a character blueprint, the function does not show up in the MyBlueprint panel's function section. Hovering over the Function bar shows the "Override" ...
Creating a new project from vault does not save the default location
Tools - May 12, 2015When creating a new project from the vault, for example: Content Examples, each time it tries to save on the C:\My Documents\Unreal Projects instead of D:\Unreal Projects, even though that folder is ...
Using TableViewBase class causes compile errors
UE - Editor - UI Systems - Slate - Jun 25, 2015Attempting to derive from or include TableViewBase in another class causes compile errors with no additional code added. ...