Unreal Engine Issues

USplineComponent still editable in viewport despite setting as "read-only".

A spline component continues to be visible and editable in-editor despite all attempts to disable the functionality through the component's settings or uproperty specifiers. ...

Repackaging the same build produces different order of shader code chunks in IoStore container TOC

A licensee reported that packaging the build with same content (it is unclear if they were rebuilding the DDC between the runs, but it shouldn't matter) produces a different placement of code chunks ...

Creating MaterialInstanceDynamic for a moving/crumbled geometry collection component, the rendering position is reset to the initial location

Creating a MID makes the render state dirty and the engine will recreate a new scene proxy without the current attitude. This results in rendering the object in incorrect location. Here is a tempor ...

Reloading string table assets breaks references to strings and logs warnings

When using the "Reload" asset action on a String Table asset, any Text variables that reference the string table would break and say "<MISSING STRING TABLE ENTRY>". ...

[CAD Import] Metadata are totally different when loading an IFC file through TechSoft.

Enabling SunPosition engine plugin causes a missing file warning in a packaged build

Licensee noted that editor-only code from the Sun Position Calculator engine plugin was causing a warning in packaged builds. A similar issue was reported for 4.22 [Link Removed], but this appears t ...

BP hierarchy change triggers incorrect map actor load warning: AttachTo: '{0}' is not static {1}, cannot attach '{2}' which is static to it.

When a blueprint's component hierarchy is changed by changing a child component's mobility value to Static while deleting its parent component which has Movable mobility, levels saved with an outdat ...

[Substrate] Workaround for DXC problem with roll unlooping

We should get to the bottom of this workaround and revert it eventually.  Reported here: [Link Removed]  ...

IME does not work in EditableTextBox in WidgetComponent

WidgetComponent controls widgets through VirtualWindow, but VirtualWindow does not have HWND, so IME cannot be enabled. The following workaround enables IME activation. void FSlateEditableTextLay ...

Editor Crash when changing Default Properties of a TArray of UStucts containing an InlineEditConditionToggle property in Blueprint Parent Class

This bug causes an editor crash. This crash occurs when changing the default values of a UStructs properties that are used as EditConditions, when they are set to InlineEditConditionToggle within a ...