Unreal Engine Issues
Unreal Engine Issues
Asset localization does not work properly for Paper2D related assets such as Flipbook
UE - Foundation - Mar 18, 2022This issue is resolved by changing Paper2D's LoadingPhase to PostConfigInit, but this is a workaround. We suggest a better long term fix via AssetRegistry changes (see comments). In the default la ...
Pose watches don't display correctly with compatible skeletons
UE - Anim - Runtime - Anim Blueprints - Aug 19, 2022"Hello, we've found a quirk with ABP's pose watch and compatible skeletons. Same setup as above. We have skeleton A as the base and skeleton B as a compatible skeleton. They both share similar hiera ...
Iris - large fast arrays serialize multiple elements when only one is dirtied
UE - Networking - Iris - Apr 8, 2025This seems to be a result of how the changemask is handled for fast arrays. Because the changemask is a fixed set of bits (defined by IrisFastArrayChangeMaskBits), a single bit can represent multipl ...
Hot reload does not update Enum entries
UE - Gameplay - Blueprint - Oct 13, 2015Performing a hot reload after updating an Enum will not reflect the update until the editor is closed/reopened. UPDATE (8/23/17): Restarting the editor dose not immediately update the enum. When ...
USkinnedMeshComponent::FindClosestBone does not respect bRequirePhysicsAsset parameter
OLD - Anim - Mar 20, 2017A licensee has reported that the USkinnedMeshComponent::FindClosestBone function does not respect the bRequiresPhysicsAsset parameter, resulting in the bone returning bones that are not part of the ...
[CrashReport] UArrayProperty::DestroyValueInternal
UE - Gameplay - Blueprint - Sep 14, 2017This is a somewhat common crash that has affected multiple users in 4.17. User Descriptionstried to compile a blueprint after changing blueprint interface function definitions. Source Code 121 ...
SceneCaptureComponent2D 'Primitive Render Mode' Always Selects Legacy Option
UE - Graphics Features - Nov 9, 2017When using SceneCapture2D and trying to edit the "Primitive Render Mode" (found in Details panel, Scene Capture) you can select the "Render Scene Primitives (Legacy)" and the "Use ShowOnly List" opt ...
Quickly using alt-tab with a blueprint in a new window causes the event graph to capture input of the alt key
Tools - Nov 13, 2017Quickly using alt-tab with a blueprint in a new window causes the event graph to capture input of the alt key. This issue does not occur when the blueprint is a tab of the main UE4 editor window. Th ...
Audio/Video out of sync after seek
Media Framework - Jan 29, 2018There is an issue that sometimes occurs when using the seek option in the media player while the Decoder is set to WMF. When this happens the audio desyncs from the video and for the rest of the vid ...
Geometry Pen Tool Duplicates Bushes On Grid Size 1 & 5
UE - LD & Modeling - Modeling Tools - BSP - Mar 7, 2018There is an issue occurring when creating brushes with the pen tool at grid size 5 where verticles or the brush shape itself seems to be doubled. This issue also occurs if the grid size is 1, though ...