Unreal Engine Issues
Unreal Engine Issues
Slider Values are not working inside of a blueprint
UE - Gameplay - Blueprint - May 7, 2015Slider Values are not working inside of a blueprint in 4.8 Preview 1. User Description: Problem with the numeric float/int boxes in the editor in Blueprints, if for example open the TPS Template a ...
Material parameters flickering due to UMG animation switching and multi-threaded execution
UE - Editor - UI Systems - UMG - May 12, 2026When continuously transitioning to UMG animations that have a track targeting the same material parameter within the UUserWidget::OnAnimationFinished event, the number of source inputs to UMovieScen ...
Assert caused by using FText::FromStringTable to initialize a FText property in the constructor of a UStruct based off FTableRowBase
UE - Foundation - Core - Jan 4, 2019When using FText::FromStringTable to initialize an FText variable in the constructor of an FStruct that inherits from FTableRowBase, an assert is caused due to recursion. The assert is as follows:As ...
GetClosestPointOnCollision returning point on parent
UE - Simulation - Physics - Mar 21, 2019GetClosestPointonCollision returns point on parent instead of welded child. From user: "The problem appears to be in PhysicsInterfacePhysX.cpp in GetSquaredDistanceToBody, line 2873. When UPrimit ...
Auto Convex collision generation doesn't work in some instances the accuracy setting
UE - Gameplay - Jun 18, 2015The new auto-convex collision generated (V-HACD) will not work properly with some meshes to generate accurate collision. Using a rounded single piece mesh the accuracy setting will not work at all ...
Ensure triggered inside Range Struct Customization when Property Node is no longer valid (e.g. when editing FFloatRange while FRuntimeFloatCurve editor is visible) [Ref. UE-341339]
UE - Editor - Verse Class Editor - Nov 12, 2025[Link Removed] Closed was fixed by CL 46990575, successfully avoiding an ensure condition inside FIntervalStructCustomization::S ...
Actor being moved via sequencer has inherited velocity that ignores play rate scale
UE - Anim - Sequencer - Nov 8, 2019When an actor that can be stood on and jumped off of is moved in a sequencer it's inherited velocity doesn't scale with the Sequence play rate. If you jump in the opposite direction the cube is goin ...
iOS CloudKit Crash
UE - Platform - Mobile - Dec 12, 2019iOS app crashes when cloudsaves are active When attempting to deploy with 4.25 MAIN @ CL 10668484 it fails with error LogPlayLevel: === BUILD TARGET AJ_ioscloudsave OF PROJECT AJ_ioscloudsave WI ...
CurrentTransaction ensure when duplicating an EQS generator
UE - AI - Aug 3, 2018When duplicating a Generator inside an Environment Query, the action triggers an ensure and stalls the Editor for a few moments. This issue was reported and tested in 4.19.2 (CL-4033788). It was r ...
Netprofile crashes networked games using Steam
UE - Networking - Jan 5, 2016Netprofile crashes networked games using Steam with the following assertion: Assertion failed: "Invalid interface for Steam P2P addresses" && 0 [Link Removed] [Line: 72] No Crash Report is submitt ...