Unreal Engine Issues
Unreal Engine Issues
ResetToFbxOnMaterialConflict does not work when reimporting in Python
UE - Editor - Content Pipeline - Import and Export - Apr 22, 2020Right now when we reimport a staticmesh in python, the given import options are ignored, resulting in the ResetToFbxOnMaterialConflict reimport setting not working. The options given to the ImportA ...
OnComponentActivated/Deactivated Event (ParticleSystem) doesn't function
UE - Gameplay - Aug 25, 2016On component activated (Particle system) doesn't trigger correctly it does however work for the character movement component and the mesh component. If you select the print as a break point the eng ...
Blueprint drop down menu constantly flickers with negative zoom
UE - Gameplay - Blueprint - Oct 21, 2014DESCRIPTION: The drop down menu of blueprint nodes constantly flicker at negative zoom REGRESSION: Yes Broken: 2330325 Worked: 2304027 (4.5 branching point) ...
GoogleVR fails to package with Gradle
UE - Platform - Mobile - Aug 10, 2017Packaging with GoogleVR (Daydream) fails with Gradle enabled: https://answers.unrealengine.com/questions/678203/417-exporting-daydream-project-with-gradle-results.html ...
Can't save BPs after stopping automation tests
UE - Automation Test - Jan 5, 2018User reported that they are unable to save assets after running tests: https://answers.unrealengine.com/questions/742429/cannot-save-or-change-assets-after-running-a-autom.html ...
SweepComponent fails against non-root bodies of skeletal mesh component in PhysX
UE - Simulation - Physics - Apr 6, 2021UDN - https://udn.unrealengine.com/s/question/0D52L00005H9X5XSAV/sweepcomponent-never-returns-a-valid-hit-against-skeletal-meshes-when-using-physx?fromCase=1 ...
Actors move around between keys in a Sequencer while Zooming in/out of the Timeline if a possessing a Cine Camera in the Sequencer
UE - Anim - Sequencer - Oct 24, 2022This is not a regression. Tested In: //UE5/Release-5.0 CL20979098 Actors move around between keyed points in a Sequencer while Zooming in/out of the Timeline if a Cine Camera is possessed in the S ...
Landscape flatten target value and terrace interval's sliders don't take the landscape scale into account
UE - Graphics Tools - Terrain - Landscape - Mar 13, 2024This problem was originally reported in this UDN : https://udn.unrealengine.com/s/question/0D5QP000007yVue0AE/flatten-brush-limit-with-landscape-scale-z?fromCase=1 ...
UDN Bug: ASTC compression becomes greyscale
UE - Anim - Mutable - Feb 13, 2025Bug reported at https://udn.unrealengine.com/s/question/0D5QP00000tOpXN0A0/using-mutable-plugin-results-in-greyscale-textures-on-android-xr?fromCase=1 ...
Inconsistent Behavior of TFieldPath and nullptr comparison
UE - CoreTech - UObject - Mar 7, 2025Commit 6448c6f (https://github.com/EpicGames/UnrealEngine/commit/6448c6f6d1de1e9fac9614248e06ba06b837814d) introduced inconsistent behavior for TFieldPath and nullptr comparison, depending on constn ...