Spline points deleted after movement

UE - Editor - Workflow Systems - Sep 6, 2019

Spline points are deleted from the Spline component after adding them in Python and then moving them in the scene. Tested in 4.21.2 (CL - 4753647) 4.22.3 (CL - 7053647), 4.23.0 (CL - 8386587), 4.24 ...

[CrashReporter] UE4Editor-AlembicHairTranslatorModule!ParseObject [AlembicHairTranslator.cpp:446]

UE - Editor - Content Pipeline - Import and Export - Dec 13, 2019

Generated from CrashReporter Error message: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x60b40008 Comments from Users: I cant import abc hair from Blender 2.81a. crashe ...

Parameters Pane shows different Variable Name then MapGet or MapSet

UE - Niagara - Mar 12, 2020

Variable names aren't displayed in MAPGET and MAPSET the same way as they are in the Parameters Pane. This is a regression from 4.24.3 (CL-11590370). This issue was reported and tested in 4.25 Prev ...

Skelmesh Bake Materials doesn't remove old materials from slots

UE - World Creation - Worldbuilding Tools - Merge Actor - Mar 24, 2021

When an LOD get materials reduced to one with Bake Materials, it doesn't delete the extra slots on the LOD. So if starting with 10 slots on the skelmesh, then baking, slot 1 gets the newly baked mat ...

Undo change to Rest Offset causing crash in Static Mesh Editor

UE - Simulation - Physics - Editor - Aug 8, 2023

When undoing any change to Rest Offset for a collision mesh the engine will crash. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binary //UE5/Release- ...

Crash occurs when blueprint breakpoint is placed after a Draw Debug String node

UE - Gameplay - Blueprint - Aug 22, 2023

This is not a regression. Tested in //UE5/Release-5.2 CL 26001984 The editor crashes when playing in editor on a level that has a break point placed on a ticking draw debug string node that is prec ...

Volumetric lightmap + stationary light has missing shadows

UE - Rendering Architecture - Sep 5, 2023

Primitives with the "Lightmap Type" set to "Force Volumetric" are not shadowed correctly. Issue dates back to at least 4.27.2. As a workaround, making FLightCacheInterface::GetStaticInteraction al ...

Free physics constraints between two objects of differing size causes smaller object to jitter

UE - Simulation - Physics - Sep 13, 2023

A cube constrained to a physics actor will start to jitter uncontrollably when interacted with. (see attached media and repro steps for more details) Tested in the following //UE5-Release-5.3-CL ...

Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly

UE - Anim - Rigging - Retargeting - Feb 13, 2025

Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted.  Users have to refresh the properties that select the base pose in order to fix the ...

CrashReporter Client has no options to close without sending

UE - Foundation - Core - CrashReportClient - Jun 9, 2016

The options to close the CrashReporter window without submitting the crash report are no longer available. I suspect this was an intentional change for Paragon ([Link Removed]), however this is not ...