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. ...
Datasmith floods network with UDP traffic in a lab environment
TM - Datasmith Exporter - Aug 28, 2023They've had some luck disabling UDP transport as mentioned in the following articles:https://docs.unrealengine.com/5.2/en-US/udp-messaging-settings-in-the-unreal-engine-project-settings/https://foru ...
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. ...
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 ...
Behavior Trees cannot be saved if the Blackboard assigned to it was opened before opening the Behavior Tree from the Content Browser
UE - AI - Nov 2, 2015Behavior Trees cannot be saved if the Blackboard assigned to it was opened before opening the Behavior Tree from the Content Browser. Reproduced in 4.8.3 binary, 4.9.2 binary, 4.10 Preview 3 binary ...
Graphics failure when pasting code for a BP node into Color Picker Hex field
Tools - Sep 11, 2015Graphics failure when pasting code for a BP node into Color Picker Hex field Does not occur in 4.8.3 ...
Flipbook components' collision in Characters is ignored
UE - Gameplay - Paper2D - Dec 23, 2014Flipbook components' collision in Characters is ignored. ...