Unreal Engine Issues
Unreal Engine Issues
'prefix parameter names' checkbox in a material function's settings does nothing.
UE - Rendering - Architecture - Materials - Nov 14, 2024Prefix Parameter Names checkbox does not work as expected, and the Group names are unmodified. The value "UMaterialFunction::bPrefixParameterNames" does not appear to be used anywhere in the Engine ...
Water body actor casts static shadow
UE - Graphics Tools - Terrain - Water - Jan 14, 2025WaterBody Actors will cast static shadows in built lighting even if their Cast Shadow options are disabled. ...
Large Memory Allocations When Adding a Landscape_WaterBrushManager
UE - Graphics Tools - Terrain - Mar 17, 2025When a "Water Body River" is added to a Scene with a Landscape, eleven Render Targets are allocated for the water rendering. These Render Targets are sized according to the resolution of the Landsca ...
Adjusting Vegetation Growth for Bushes in Media Mode alters their global size settings
TM - Tools - Jun 25, 2026Reported in SF [Link Removed] When making adjustments to the Vegetation growth Season parameter inside Media Mode, if a scene contains Bushes then any adjustments to the Vegetation growth will adju ...
Reimporting mesh will wipe any collisions that were setup using the Static Mesh Editor
Tools - Jun 12, 2015When Reimporting a mesh the collision that is created using the methods in the Static Mesh Editor will be wiped if there was not previously setup UCX custom collision. ...
HideCategories() property is not held when the editor is closed
UE - Gameplay - Blueprint - Mar 20, 2015Setting a UCLASS() macro with the "HideCategories" property will updated after a hot reload but after closing /reopening the editor the hidden category will be visible again. ...
Landscape Collision does not register from under the landscape
UE - LD & Modeling - Terrain - Landscape - Jan 4, 2016Landscape collision does not properly register if a character collides with it from under the landscape. ...
Child components of child actor components in blueprints do not update transform based on parent
UE - Gameplay - Nov 10, 2015If a blueprint has a child actor component that has other components parented to the child actor component, the child components of child actor components will not update transform based on the pare ...
Getting a TextBlock variable from the Return Value of a Create Widget node inside a Player Controller will cancel all the nodes before it in Standalone
UE - Gameplay - Blueprint - May 15, 2015Getting a TextBlock variable from the Return Value of a Create Widget node inside a Player Controller will cancel all the nodes before it in Standalone. Does not occur in other PIE modes, and does n ...
Changing a Media Player asset from Stream Mode: FromURL to From Memory crashes the editor
Tools - Dec 30, 2014Changing a Media Player asset from Stream Mode: FromURL to From Memory crashes the editor. In 4.8, the editor crashes immediately upon changing that value, with no crash report. In 4.6 and 4.7 Pre ...