Unreal Engine Issues
Unreal Engine Issues
Sublevel moves away when undoing the level visibility change
Tools - Nov 21, 2016When you have a sub level with some level transform, changing its visibility then doing undo makes the sub level moved away as if the level transform applied twice. I could repro the issue in 4.13. ...
Mutable custom versioning issue from 5.5->5.6
UE - Runtime - Mutable - Sep 19, 2025In 5.6, a handful of new entries in `FCustomizableObjectCustomVersion` were added, including `SetDisplayNamePropertyAsPinNameOfTableNodes`. Looking back at the history, `SetDisplayNamePropertyAsPinN ...
Reducing Resolution Scale affects Selection Accuracy in Viewport
UE - Graphics Features - Nov 17, 2015When reducing the Resolution Scale the selection accuracy is reduced greatly, and makes it difficult to click and move objects in the viewport when PIE or Simulating. ...
Instanced Static mesh does not LOD at the same screen distance as standalone mesh
UE - Graphics Features - Nov 11, 2014DESCRIPTION: When using instanced static mesh component in a blueprint that has LODs the normal distances for LODs are not reflected for the instanced static mesh component. AH Post: https://answe ...
SetMasterPoseComponent overrides any SetMorphTarget operations
OLD - Anim - Oct 16, 2015Using Set Master Pose Component overrides any Set Morph Target operations on the slave component. ...
Set Sound Mix Class Override still Playing Sounds in Certain Conditions
UE - Audio - Oct 7, 2016When using the Set Sound Mix Class Override within blueprints, the playback of any subsequent sounds seems offset or incorrect. This is apparent when using a Delay node. ...
DevelopmentServerLauncher.exe loops whenever the editor is open even if no iOS devices are connected
UE - Platform - Mobile - Apr 29, 2019A user has reported that DeploymentServerLauncher.exe will continue to poll for devices even if no iOS devices are connected. I am under the impression that this is so that Windows can poll for iOS ...
Breakpoints on nodes in deleted functions are not cleared
UE - Gameplay - Blueprint - Nov 16, 2018Might be a simpler repro than this, but take a look at revision 1 of PreRolledBoxes in FortniteMain to see an asset affected by this. It was duplicated from StoreRoot which had breakpoints in some o ...
r.ScreenPercentage.Editor does not function
UE - Graphics Features - Jun 2, 2016Setting r.ScreenPercentage.Editor does not affect the upsampling/downsampling of the viewport in the editor. Regression: YES - the console command correctly adjusted the screen precentage in 4.11.2 ...
Editor Drop Down Menus become out of place when moving across a small screen to a larger display
UE - Platform - Apple - Feb 13, 2015In a Mac environment with where a MacBook Pro 15" retina display is used in combination with a larger 25" display "traditional resolution" the menus will drop down as expected on where the editor is ...