NavLink Proxy CHILD ACTOR stops working in a Packaged and Standalone game

UE - AI - Oct 5, 2017

NavLink Proxy CHILD ACTOR stops working in a Packaged and Standalone game. Works as expected in PIE. Licensee Description: Force Rebuild on Load is not called and the nav links as child actors do ...

[CrashReport] Crash CheckForWorldGCLeaks() - EditorDestroyWorld()

UE - AI - Sep 8, 2017

This is a somewhat common but longstanding Mac crash that has affected users since at least 4.13. Recently in 4.17.1, the crashes are all occurring in various ARKit projects User DescriptionsI add ...

Error when Compiling an AIController Blueprint Class with an AIPerception Component

UE - AI - Aug 1, 2017

An error populated the output log when Compiling an AIController Blueprint Class with an AIPerception Component. This is not a Regression, as it Occurs in //UE4/Main. ...

Crash Occurs After Calling Move To Location on an AI Pawn using a DetourCrowdAIController

UE - AI - Jul 5, 2017

The editor will crash after calling Move To Location on an AI Pawn that is using a DetourCrowdAIController ...

Disabling/Enabling Nav Link Proxies Causes UNavigationSystem::TestPathSync() to Always Return True

UE - AI - Jun 9, 2017

When using ANavLinkProxy::SetSmartLinkEnabled() to toggle a Smart Link, it will cause UNavigationTestPathSync() to always return true. ...

RecastNavMesh fails to delete when grouped with NavMeshBoundsVolume - Top Down project

UE - AI - May 31, 2017

While testing in //UE4/Release-4.16 CL 3466753 in Binary – I encountered an issue when deleting NavMeshBoundsVolume and RecastNavMesh. The NavMeshBoundsVolume is deleted but the RecastNavMesh remain ...

Ensure when undoing the deletion of the RecastNavMesh - Top Down project

UE - AI - May 31, 2017

While testing in //UE4/Release-4.16 CL 3466753 in Binary – I encountered an ensure when undoing the deletion of the RecastNavMesh. Regression: No This issue also occurs in //UE4/Main and //UE4/Rele ...

Crash Editor when deleting RecastNavMesh & NavMeshBoundsVolume - Top Down project

UE - AI - May 31, 2017

While testing in //UE4/Release-4.16 CL 3466753 in Binary – I encountered a crash when deleting, undoing, then re-deleting the NavMeshBoundsVolume and RecastNavMesh.UE_LOG(LogObj, Fatal,TEXT("Renamin ...

DetourCrowdAIController Using Incorrect Nav Agent

UE - AI - May 22, 2017

Pawns using a DetourCrowdAIController do not appear to be using the correct Nav Agent when attempting to move. Setting the AI Controller class to a normal AI Controller allows it to complete the s ...

NavMesh Broken Between Two Adjacent Actors With Hierarchical Instance Static Mesh Component

UE - AI - May 22, 2017

When Two adjacent actors with hierarchical instance static mesh component cross the tile bound of navmesh, navmesh is broken. In screenshot.png, above is the normal Static Meshs, bellow is the Actor ...