Moving assets in the Editor fails to fixup references causing the project to generate errors

Tools - Mar 30, 2020

Moving assets in the Editor is very unreliable. References may or may not be fixed up. No direct error is presented or a warning about problems. Any moves of the gameinstance, string table or certai ...

Imported Maya animation seems to be 1-frame off in Unreal

OLD - Anim - Apr 5, 2016

A licensee reported this issue on UDN. They are seeing a discrepancy with animations imported from Maya. In this case, they appear to be off by 1-frame. We've talked about this on Slack and I know ...

Wind Directional Source is not updated when changing values via blueprints

UE - Gameplay - Blueprint - Sep 29, 2014

CL: 2306964 Link: https://answers.unrealengine.com/questions/105058/speedtree-wind-dir-source-actor-not-refreshing-fro.html Description: Cannot set the Wind Directional Source component settings via ...

Animation viewports can cause debug print messages to be purged

UE - Anim - Rigging - Control Rig - Jan 11, 2024

A change was made a while back so that control rig debug print messages would be displayed in the animation editor preview windows.  This is done via calling UEngine::DrawOnscreenDebugMessages from ...

Editor Crashes when copying/pasting a custom event function that was within a separate function to an event graph if the custom event was created in another blueprint

UE - Gameplay - Blueprint - Jan 16, 2015

Editor crashes when a custom event node is called as a function within a different blueprint in a separate function, then copied and pasted into the event graph of the second blueprint, the executio ...

Editor crashes when compiling widget blueprints when the behavior section is expanded

Tools - Nov 10, 2017

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 367 uint8* FObjectPropertyNode::GetV ...

Crash reimporting a skeletal mesh with less Material IDs than on first import

NOTE: Does not occur in 4.16, entered this to find a fix for licensee to integrate. Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out o ...

Users Unable to create C++ Projects

UE - Foundation - Core - Mar 6, 2015

2nd AH post with the same issue: https://answers.unrealengine.com/questions/183441/cant-load-c-projects.html Multiple people have reported not being able to create a C++ project. Creating a Bluepr ...

Selection of foliage instances broken with nanite

UE - Graphics Features - Nanite - Aug 19, 2022

The selection of individual instances of a foliage HISM is broken, so that the instance is correctly outlined but the gizmo is placed over a different instance. If we delete the selected instance it ...

Issues changing physics properties on destructible meshes

UE - Simulation - Physics - Destruction - Oct 15, 2015

Numerous issues when manipulating destructibles. 1) Changing collision response pre-fracture will not affect chunks post-fracture 2) Changing collisions response pre-fracture will prevent damage f ...