Smart Links are Removed During Dynamic NavMesh Regeneration

UE - AI - Feb 24, 2016

Smart links disappear whenever the Nav Mesh regenerates while using Dynamic Runtime Generation. For example, if you have a dynamic object that is constantly moving and causing the Nav Mesh to rebuil ...

Level Streaming Blocking Loads Do Not Work

UE - Gameplay - Jun 4, 2018

It is believed that If Should Block On Load is TRUE, the entire game should freeze up until the entire level is loaded. Then If Should Block On Load is FALSE, the game continues to play while the le ...

Engine Crashes When Trying to Add an Entry to a TMap in a Nested Struct That is an Element of an Array

Tools - Oct 3, 2019

When trying to add an entry to a TMap in a nested struct that is an element of an array the engine crashes. This doesn't happen if it is not an array of the nested struct. Attached are .h and .cpp ...

Changing "Coordinate Light Map Index" When "Generate Lightmap UVs" Is Enabled In A Static Mesh Crashes Engine

Tools - Dec 31, 2019

When altering "Coordinate Light Map Index" in a static mesh when "Generate Lightmap UVs" is enabled in LOD 0 the engine will crash or "Coordinate Light Map Index" will be set to 0. A demonstration ...

SWorldPartitionEditorGrid2D causing editor to crash

UE - World Creation - Worldbuilding Tools - World Partition - Mar 13, 2023

"Favorite Levels" not persisting correctly when changed in the Editor

UE - Editor - Workflow Systems - Nov 21, 2023

In the Level Editor's "File" menu, there is a "Favorite Levels" list, which is persisted in the config file "EditorPerProjectUserSettings.ini" under section "[FavoriteFiles]". Manually editing this ...

"StaticFindFirstObject: Ambiguous object name" on delegates with timelines in packed level actors

UE - World Creation - Worldbuilding Tools - Level Instances - Jan 31, 2024

Regression - Nav mesh is not generated on BSP brushes after loading a map

UE - AI - Navigation - Dec 18, 2024

In UE 5.5, when loading a map and selecting "Build – Build Paths", the nav mesh is not generated on any BSP brushes (although it is correctly generated in static meshes). This did not happen in earl ...

Regression - Nav mesh is not generated on BSP brushes after loading a map

UE - AI - Navigation - Jan 14, 2025

In UE 5.5, when loading a map and selecting "Build – Build Paths", the nav mesh is not generated on any BSP brushes (although it is correctly generated in static meshes). This did not happen in earl ...

PropertySet : changes in instancedstruct are not detected by the watch

UE - Graphics Tools - Modeling Tools - GeometryScripting - Jan 24, 2025

Hi, I tried to use for a scriptable tool the watch property node for a struct. The objective for me was to offer to my user a view of a struct in the scriptable tool and have these modifications b ...