Unreal Engine Issues

Light Components fail to propagate certain property changes from Sequencer

'prefix parameter names' checkbox in a material function's settings does nothing.

Prefix 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

WaterBody Actors will cast static shadows in built lighting even if their Cast Shadow options are disabled. ...

Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window

Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window. As described in Steps To Reproduce, as soon as the Outliner Window is detached from the Main Window, most ...

Reimporting mesh will wipe any collisions that were setup using the Static Mesh Editor

When 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

Setting 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

If 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

Behavior 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

Graphics failure when pasting code for a BP node into Color Picker Hex field Does not occur in 4.8.3 ...

Rendering out PNG Sequence from Matinee yields Transparent PNGs

When rendering a movie out as a PNG sequence, the PNGs are all rendered with Transparency and require the addition of a Black layer before the frame can be viewed as in the Matinee. Went back and t ...