Navigation obstacles remain when turning off bCanEverAffectNavigation in Blueprint actor

UE - AI - Nov 30, 2018

Editing the bCanEverAffectNavigation flag on an Actor Blueprint is propagating the value of the property to the Blueprint instance, but fails to properly update the navmesh according to the new valu ...

Navigation Mesh ignores Hierarchical Instanced Static Meshes using "Build Paths" or the "Build" Button

UE - AI - Feb 1, 2019

Hierarchical Instanced Static Meshes are partially ignored after building the navigation mesh. This is causing the navmesh to be generated within all or part the HISM instead of around it.  This ...

Incorrect config property serialization for UStructs used as TMap keys or contained in a TSet with a single value. Diffs taken from default-value of each member type, instead of from default-value of the struct

UE - CoreTech - Nov 18, 2024

Consider a UStruct with some basic type members, each one with a default value specified in the struct. Also consider a TSet or TMap with that struct as keys, used inside a UObject as a UProperty an ...

Custom CrowdManagerClass reference is set to none when restarting the Editor

UE - AI - Nov 21, 2018

When setting a C++ class that's derived from CrowdManager as the "Crowd Manager Class", will cause the "Crowd Manager Class" value to be set to "None" when the Editor is restarted. This issue was r ...

Blueprint graph stops drawing correctly after using shift-drag

UE - Gameplay - Blueprint Editor - Dec 26, 2018

When shift-dragging in the Blueprint graph and ending the drag on a node with a connected wire, the Blueprint graph will freeze up. There is an attached video that showcases the issue as well. Th ...

Enabling Merge GC Clusters and Blueprint Clustering causes a packaged Window project to crash

UE - Foundation - Core - Cooker - Jan 3, 2019

Enabling the check boxes for Merge GC Clusters and Blueprint Clustering causes packaged Windows projects to crash on startup. The log and dump files regarding this crash have been attached to this t ...

Retargeting an Animation to a Skeleton with a Virtual Bone causes the Engine to crash

OLD - Anim - Jan 14, 2019

This crash occurs when trying to retarget an animation onto another skeleton with a retargeting rig that references a virtual bone. This issue could be similar to [Link Removed] This issue was re ...

Editing values in ReverbMasterSubmixEffect causes crash

UE - Audio - Nov 7, 2019

Adding and removing Submixes at runtime, then editing the preset causes the editor to crash. Tested in 4.22.3 (CL - 7053647), 4.23.1 (CL - 9631420), 4.24 (CL - 1050688), 4.25 (CL - 10069288) ...

When the engine version updated, partial data of TMap/TSet type of DataTable is missing

UE - Foundation - Core - Jan 7, 2019

When updating to 4.21, Element previously added to DataTable is missing. This only occur when you move to 4.21. If it change from 4.19 to 4.20, DataTable will keep data. it can restore broken data b ...

Scrolling the mouse wheel slowly on Mac does not have any effect in the editor

UE - Platform - Apple - Jan 19, 2017

REGRESSION No, occurs in 4.14.3 On Mac, scrolling slowly (one or two notches) does not have any affect in editor, whereas on the Windows, this has full effect. This was seen in editor (with scroll ...