Unreal Engine Issues
Unreal Engine Issues
CLONE - Project does not cook with actors containing ModularSynth component
UE - Audio - Sep 13, 2017A project does not cook with actors containing ModularSynth component. The error is a follows UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: begin: stack for UAT UATHelper: Pack ...
Launch on fails during staging with a SafeCopyFile Exception for MfMedia.uplugin
Tools - Jan 10, 2017Was able to repro this on machines with and without machines set up for Xbone testing. ...
tvOS/IOS: Fails to Build with dSYM Options Enabled Due to DsymExporter Erroring Out
UE - Platform - Mobile - Jan 22, 2019When attempting to package for tvOS or iOS with the generate dSYM options enabled, numerous instances of the following errors occur:[2019.01.21-20.53.35:739][138]UATHelper: Packaging (tvOS): [2019 ...
Has Any User Focused Descendants returns true even if all children have been removed
UE - Editor - UI Systems - Apr 25, 2016HasAnyUserFocusedDescendants returns true even when all children have been removed. ...
If a child blueprint class has an Instanced/EditInlineNew object property, that property will always be detected as changed by the property editor (i.e. it will show a "Revert" arrow on that property), even if its properties are identical to the parent.
UE - Framework - Blueprint Editor - Dec 17, 2025Context: Blueprint classes can use Instanced/EditInlineNew object property specifiers to create and edit subobjects directly in the editor. Problem: If a child blueprint class has an Instanced/Edit ...
Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window
UE - Editor - Workflow Systems - May 27, 2025Keyboard 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 ...
Can only assign one camera component from a blueprint
UE - Anim - Sequencer - Sep 24, 2017Looks like need to make the level viewport aware of a locked camera component, and not just an actor. ...
The F10 key doesn't work for stepping blueprint debugging
UE - Gameplay - Blueprint - Mar 24, 2015The step button claims that it does (and it should). ...
SButton and SBorder multiply color and opacity twice
UE - Editor - UI Systems - Sep 22, 2016Currently, the SButton and SBorder widgets multiply the color and opacity during OnPaint before calling the super (SCompoundWidget::OnPaint). This causes the operation to be done twice, since the co ...
Widgets can no longer take focus after clicking somewhere other than the widget itself
UE - Editor - UI Systems - Oct 24, 2016Widgets can no longer take focus after clicking somewhere other than the widget itself. The input mode appears to change, but does not change back when clicking widgets Note: This issue did not app ...